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1 /*
2  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice, this list of
9  *    conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12  *    of conditions and the following disclaimer in the documentation and/or other materials
13  *    provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16  *    to endorse or promote products derived from this software without specific prior written
17  *    permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include "../core/ipv4/etharp.c"  /* for arp_table */
33 #define icmp6_hdr netinet_icmp6_hdr
34 #include <netinet/icmp6.h>
35 #undef icmp6_hdr
36 #include "lwip/fixme.h"
37 #include "lwip/opt.h"
38 
39 #if LWIP_ENABLE_LOS_SHELL_CMD
40 #include "lwip/api.h"
41 #include "lwip/tcpip.h"
42 #include "lwip/netif.h"
43 #include "lwip/netdb.h"
44 #include "lwip/stats.h"
45 #include "lwip/err.h"
46 #include "lwip/inet.h"
47 #include "netif/etharp.h"
48 #include "lwip/ip_addr.h"
49 #include "lwip/ip6_addr.h"
50 #include "lwip/icmp.h"
51 #include "lwip/priv/nd6_priv.h"
52 #include "lwip/sockets.h"
53 #include "lwip/inet_chksum.h"
54 #include "lwip/raw.h"
55 #include "los_config.h"
56 #include <string.h>
57 #include "limits.h"
58 #include <stdlib.h>
59 #include <stdio.h>
60 #include <errno.h>
61 #include <time.h>
62 #include <ctype.h>
63 #include <poll.h>
64 
65 #include "lwip/api_shell.h"
66 
67 #include "lwip/dns.h"
68 #include "lwip/udp.h"
69 #include "lwip/priv/tcp_priv.h"
70 
71 #include "lwip/dhcp.h"
72 #include "lwip/netifapi.h"
73 #include "los_strnlen_user.h"
74 #include "linux/kernel.h"
75 #ifdef LOSCFG_SHELL
76 #include "shcmd.h"
77 #include "shell.h"
78 #endif
79 
80 #define LWIP_STATIC static
81 
82 #if LWIP_ARP
83 extern sys_sem_t ip_conflict_detect;
84 #endif
85 extern volatile int tcpip_init_finish;
86 extern const char *const tcp_state_str[];
87 extern int get_unused_socket_num(void);
88 
89 #if LWIP_IPV6
90 #define LWIP_MAX_PING6_ARG_COUNT              64
91 #define LWIP_PING6_STANDARD_PKT_SIZE          56
92 #define LWIP_PING6_STARTING_SEQ_NUM           0x2255
93 #define LWIP_PING6_OUT_OF_ORDER_MAGNITUDE     1
94 
95 #define LWIP_PING6_COUNT_ARG           1
96 #define LWIP_PING6_SOURCE_ADDRESS_ARG  2
97 #define LWIP_PING6_INTERFACE_ARG       4
98 #define LWIP_PING6_HOSTNAME_ARG        8
99 #define LWIP_PING6_DEFAULT_SOCKET      16
100 #endif
101 
102 /* Forward Declarations [START] */
103 #ifndef LWIP_TESTBED
104 LWIP_STATIC
105 #endif
106 int print_netif(struct netif *netif, char *print_buf, unsigned int buf_len);
107 
108 #ifndef LWIP_TESTBED
109 LWIP_STATIC
110 #endif
111 void lwip_ifconfig_show_internal(void *arg);
112 
113 #ifndef LWIP_TESTBED
114 LWIP_STATIC
115 #endif
116 void lwip_ifconfig_internal(void *arg);
117 
118 void lwip_printsize(size_t size);
119 LWIP_STATIC void lwip_ifconfig_usage(const char *cmd);
120 
121 #ifndef LWIP_TESTBED
122 LWIP_STATIC
123 #endif
124 void lwip_arp_show_internal(struct netif *netif, char *printf_buf, unsigned int buf_len);
125 
126 #ifndef LWIP_TESTBED
127 LWIP_STATIC
128 #endif
129 void lwip_arp_internal(void *arg);
130 
131 LWIP_STATIC void lwip_arp_usage(const char *cmd);
132 void ifup_internal(void *arg);
133 void ifdown_internal(void *arg);
134 
135 #if LWIP_DNS
136 LWIP_STATIC unsigned int get_hostip(const char *hname);
137 
138 #ifndef LWIP_TESTBED
139 LWIP_STATIC
140 #endif
141 struct hostent *gethostnameinfo(const char *host);
142 
143 #endif /* LWIP_DNS */
144 
145 #ifdef LWIP_DEBUG_INFO
146 LWIP_STATIC u32_t netdebug_memp(int argc, const char **argv);
147 LWIP_STATIC u32_t netdebug_sock(int argc, const char **argv);
148 u32_t osShellNetDebug(int argc, const char **argv);
149 u32_t osShellIpDebug(int argc, const char **argv);
150 #endif /* LWIP_DEBUG_INFO */
151 #if LWIP_IPV6
152 /* Holds params for ping6 task */
153 typedef struct ping6_args {
154     u8_t args_found;
155     u8_t interface_index;
156     u8_t host_index;
157     u8_t pad;
158     u32_t pingcount;
159     ip6_addr_t src_addr;
160     ip6_addr_t dst_addr;
161 } ping6_args_t;
162 
163 /* Holds stats for ongoing ping6 task */
164 typedef struct ping6_stats {
165     u32_t flag;
166     u32_t min_rtt;
167     u32_t max_rtt;
168     float avg_rtt;
169 } ping6_stats_t;
170 LWIP_STATIC void update_ping6_stats(ping6_stats_t *ping6_stats, u32_t rtt, u32_t nreceived);
171 LWIP_STATIC int parse_args_ping6(int argc, const char **argv, ping6_args_t *ping6_params);
172 
173 u32_t osShellPing6(int argc, const char **argv);
174 LWIP_STATIC int create_ping6_socket(u8_t type, const void *param);
175 LWIP_STATIC const char *convert_icmpv6_err_to_string(u8_t err_type);
176 #endif /* LWIP_IPV6 */
177 u32_t osTcpserver(int argc, const char **argv);
178 void udpserver(int argc, const char **argv);
179 void tcp_access(int sockfd);
180 #if LWIP_IPV6
181 int netstat_get_udp_sendQLen6(struct udp_pcb *udppcb, struct pbuf *udpbuf);
182 int netstat_udp_sendq6(struct udp_pcb *upcb);
183 #endif
184 #if LWIP_IPV4
185 int netstat_get_udp_sendQLen(struct udp_pcb *udppcb, struct pbuf *udpbuf);
186 #endif
187 int netstat_tcp_sendq(struct tcp_pcb *tpcb);
188 int netstat_tcp_recvq(struct tcp_pcb *tpcb);
189 int netstat_netconn_recvq(const struct netconn *conn);
190 
191 int netstat_udp_sendq(struct udp_pcb *upcb);
192 int netstat_netconn_sendq(struct netconn *conn);
193 /* Forward Declarations [END] */
194 
195 #define IFCONFIG_OPTION_SET_IP          (1)
196 #define IFCONFIG_OPTION_SET_NETMASK     (1 << 1)
197 #define IFCONFIG_OPTION_SET_GW          (1 << 2)
198 #define IFCONFIG_OPTION_SET_HW          (1 << 3)
199 #define IFCONFIG_OPTION_SET_UP          (1 << 4)
200 #define IFCONFIG_OPTION_SET_DOWN        (1 << 5)
201 #define IFCONFIG_OPTION_SET_MTU         (1 << 6)
202 #define IFCONFIG_OPTION_DEL_IP          (1 << 7)
203 
204 #define NETSTAT_ENTRY_SIZE 120
205 #define MAX_NETSTAT_ENTRY (NETSTAT_ENTRY_SIZE * (MEMP_NUM_TCP_PCB + MEMP_NUM_UDP_PCB + MEMP_NUM_TCP_PCB_LISTEN + 1))
206 
207 #define PRINT_BUF_LEN   1024
208 #define MAX_MACADDR_STRING_LENGTH    18 /* including NULL */
209 
210 #define CONVERT_STRING_TO_HEX(_src, _dest)                                                      \
211 {                                                                                               \
212     const char *_srcString = (char *)_src;                                                      \
213     _dest = 0;                                                                                  \
214     while (*_srcString) {                                                                       \
215         _dest = (unsigned char)((_dest << 4) & 0xFF);                                           \
216         if ((*_srcString >= 48) && (*_srcString <= 57))    /* between 0 to 9 */                 \
217             _dest |= (unsigned char)(*_srcString - 48);                                         \
218         else if ((*_srcString >= 65 && *_srcString <= 70)) /* between A to F */                 \
219             _dest |= (unsigned char)((*_srcString - 65) + 10);                                  \
220         else if ((*_srcString >= 97 && *_srcString <= 102)) /* between a to f */                \
221             _dest |= (unsigned char)((*_srcString - 97) + 10);                                  \
222         else break;                                                                             \
223         ++_srcString;                                                                           \
224     }                                                                                           \
225 }
226 
227 #define ERR_IFCONFIG_STRING_PUT(ret, str)                                                       \
228     do {                                                                                        \
229         (ret) = snprintf_s(ifconfig_cmd->cb_print_buf + ifconfig_cmd->print_len,                \
230                            PRINT_BUF_LEN - ifconfig_cmd->print_len,                             \
231                            ((PRINT_BUF_LEN - ifconfig_cmd->print_len) - 1), (str));             \
232         if (((ret) > 0) && ((unsigned int)(ret) < (PRINT_BUF_LEN - ifconfig_cmd->print_len)))   \
233             ifconfig_cmd->print_len += (unsigned int)(ret);                                     \
234     } while (0)                                                                                 \
235 
236 #define LWIP_MSECS_TO_SECS(time_in_msecs) (time_in_msecs / 1000)
237 struct ifconfig_option {
238     char iface[IFNAMSIZ];
239     unsigned int option;
240     ip_addr_t ip_addr;
241     ip_addr_t netmask;
242     ip_addr_t gw;
243     unsigned char ethaddr[6];
244     u16_t mtu;
245     /* when using telnet, print to the telnet socket will result in system  */
246     /* deadlock. So we cahe the prinf data to a buf, and when the tcpip      */
247     /* callback returns, then print the data out to the telnet socket       */
248     sys_sem_t cb_completed;
249     char cb_print_buf[PRINT_BUF_LEN];
250     unsigned int print_len;
251 };
252 
253 struct netstat_data {
254     s8_t *netstat_out_buf;
255     u32_t netstat_out_buf_len;
256     u32_t netstat_out_buf_updated_len;
257     sys_sem_t cb_completed;
258 };
259 
260 struct if_cmd_data {
261     char *if_name;
262     err_t err;
263     sys_sem_t cb_completed;
264 };
265 
266 #ifndef LWIP_TESTBED
267 LWIP_STATIC
268 #endif
print_netif(struct netif * netif,char * print_buf,unsigned int buf_len)269 int print_netif(struct netif *netif, char *print_buf, unsigned int buf_len)
270 {
271     int i, ret;
272     char *tmp = print_buf;
273 #if LWIP_IPV6
274     char *addr = NULL;
275 #endif
276 
277     if (buf_len < 1) {
278         goto out;
279     }
280     if (netif->link_layer_type == LOOPBACK_IF) {
281         ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%.2s\t", netif->name);
282     } else {
283         ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%s\t", netif_get_name(netif));
284     }
285     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
286         goto out;
287     tmp += ret;
288     buf_len -= (unsigned int)ret;
289 #if LWIP_IPV4
290     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "ip:%s ", ipaddr_ntoa(&netif->ip_addr));
291     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
292         goto out;
293     tmp += ret;
294     buf_len -= (unsigned int)ret;
295 
296     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "netmask:%s ", ipaddr_ntoa(&netif->netmask));
297     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
298         goto out;
299     tmp += ret;
300     buf_len -= (unsigned int)ret;
301 
302     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "gateway:%s\n", ipaddr_ntoa(&netif->gw));
303     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
304         goto out;
305     tmp += ret;
306     buf_len -= (unsigned int)ret;
307 #endif
308 
309 #if LWIP_IPV6
310     for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
311         /* only PREFERRED addresses are displyaed */
312         if (!ip6_addr_isvalid(netif->ip6_addr_state[i])) {
313             continue;
314         }
315         addr = ip6addr_ntoa((const ip6_addr_t *)&netif->ip6_addr[i]);
316         ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tip6: %s/64\n", addr ? addr : "::");
317         if ((ret <= 0) || ((unsigned int)ret >= buf_len))
318             goto out;
319         tmp += ret;
320         buf_len -= (unsigned int)ret;
321     }
322 #endif
323 
324     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tHWaddr ");
325     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
326         goto out;
327     tmp += ret;
328     buf_len -= (unsigned int)ret;
329 
330     for (i = 0; i < netif->hwaddr_len - 1; i++) {
331         ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%02x:", netif->hwaddr[i]);
332         if ((ret <= 0) || ((unsigned int)ret >= buf_len))
333             goto out;
334         tmp += ret;
335         buf_len -= (unsigned int)ret;
336     }
337 
338     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%02x", netif->hwaddr[i]);
339     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
340         goto out;
341     tmp += ret;
342     buf_len -= (unsigned int)ret;
343 
344     ret = snprintf_s(tmp, buf_len, (buf_len - 1), " MTU:%d %s", netif->mtu,
345                      netif->flags & NETIF_FLAG_UP ? "Running" : "Stop");
346     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
347         goto out;
348     tmp += ret;
349     buf_len -= (unsigned int)ret;
350 
351     if (netif_default == netif && netif_is_up(netif)) {
352         ret = snprintf_s(tmp, buf_len, (buf_len - 1), " %s", "Default");
353         if ((ret <= 0) || ((unsigned int)ret >= buf_len))
354             goto out;
355         tmp += ret;
356         buf_len -= (unsigned int)ret;
357     }
358 
359     ret = snprintf_s(tmp, buf_len, (buf_len - 1), " %s\n", netif->flags & NETIF_FLAG_LINK_UP ? "Link UP" : "Link Down");
360     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
361         goto out;
362     tmp += ret;
363 
364 #if MIB2_STATS
365     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tRX packets:%u ",
366                      netif->mib2_counters.ifinucastpkts + netif->mib2_counters.ifinnucastpkts);
367     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
368       goto out;
369     tmp += ret;
370     buf_len -= (unsigned int)ret;
371 
372     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "errors:%u ", netif->mib2_counters.ifinerrors);
373     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
374       goto out;
375     tmp += ret;
376     buf_len -= (unsigned int)ret;
377 
378     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "dropped:%u ", netif->mib2_counters.ifindiscards);
379     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
380       goto out;
381     tmp += ret;
382     buf_len -= (unsigned int)ret;
383 
384     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "overruns:%u\n", netif->mib2_counters.ifinoverruns);
385     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
386       goto out;
387     tmp += ret;
388     buf_len -= (unsigned int)ret;
389 
390     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tTX packets:%u ",
391                      netif->mib2_counters.ifoutucastpkts + netif->mib2_counters.ifoutnucastpkts);
392     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
393       goto out;
394     tmp += ret;
395     buf_len -= (unsigned int)ret;
396 
397     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "errors:%u ", netif->mib2_counters.ifouterrors);
398     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
399       goto out;
400     tmp += ret;
401     buf_len -= (unsigned int)ret;
402 
403     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "dropped:%u\n", netif->mib2_counters.ifoutdiscards);
404     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
405       goto out;
406     tmp += ret;
407     buf_len -= (unsigned int)ret;
408 
409     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tRX bytes:%u ", netif->mib2_counters.ifinoctets);
410     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
411       goto out;
412     tmp += ret;
413     buf_len -= (unsigned int)ret;
414 
415     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "TX bytes:%u\n", netif->mib2_counters.ifoutoctets);
416     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
417       goto out;
418     tmp += ret;
419     buf_len -= (unsigned int)ret;
420 #endif
421 
422 out:
423     return (int)(tmp - print_buf);
424 }
425 
426 #ifndef LWIP_TESTBED
427 LWIP_STATIC
428 #endif
lwip_ifconfig_show_internal(void * arg)429 void lwip_ifconfig_show_internal(void *arg)
430 {
431     struct netif *netif = NULL;
432     struct ifconfig_option *ifconfig_cmd = (struct ifconfig_option *)arg;
433     int ret;
434 
435     if (netif_list == NULL) {
436         ret = snprintf_s(ifconfig_cmd->cb_print_buf, PRINT_BUF_LEN - ifconfig_cmd->print_len,
437                          ((PRINT_BUF_LEN - ifconfig_cmd->print_len) - 1), "Device not init\n");
438         if ((ret > 0) && ((unsigned int)ret < (PRINT_BUF_LEN - ifconfig_cmd->print_len))) {
439             ifconfig_cmd->print_len += (unsigned int)ret;
440         }
441         sys_sem_signal(&ifconfig_cmd->cb_completed);
442         return;
443     }
444 
445     if (ifconfig_cmd->iface[0] == '\0') {
446         /* display all netif */
447         for (netif = netif_list; netif != NULL; netif = netif->next) {
448             ret = print_netif(netif, ifconfig_cmd->cb_print_buf + ifconfig_cmd->print_len,
449                               PRINT_BUF_LEN - ifconfig_cmd->print_len);
450             ifconfig_cmd->print_len += (unsigned int)ret;
451         }
452     } else {
453         netif = netif_find(ifconfig_cmd->iface);
454         if (netif == NULL) {
455             ret = snprintf_s(ifconfig_cmd->cb_print_buf + ifconfig_cmd->print_len,
456                              (PRINT_BUF_LEN - ifconfig_cmd->print_len),
457                              ((PRINT_BUF_LEN - ifconfig_cmd->print_len) - 1), "Device not found\n");
458             if ((ret > 0) && ((unsigned int)ret < (PRINT_BUF_LEN - ifconfig_cmd->print_len))) {
459                 ifconfig_cmd->print_len += (unsigned int)ret;
460             }
461 
462             sys_sem_signal(&ifconfig_cmd->cb_completed);
463             return;
464         }
465 
466         ret = print_netif(netif, ifconfig_cmd->cb_print_buf + ifconfig_cmd->print_len,
467                           PRINT_BUF_LEN - ifconfig_cmd->print_len);
468         ifconfig_cmd->print_len += (unsigned int)ret;
469     }
470     sys_sem_signal(&ifconfig_cmd->cb_completed);
471 }
472 
473 #ifndef LWIP_TESTBED
474 LWIP_STATIC
475 #endif
lwip_ifconfig_internal(void * arg)476 void lwip_ifconfig_internal(void *arg)
477 {
478     struct ifconfig_option *ifconfig_cmd = NULL;
479     struct netif *netif = NULL;
480     ip_addr_t ip_addr;
481     ip_addr_t netmask;
482     ip_addr_t gw;
483     unsigned short mtu;
484     struct netif *loc_netif = NULL;
485     int ret;
486     s8_t idx;
487     err_t err;
488 
489     ifconfig_cmd = (struct ifconfig_option *)arg;
490     netif = netif_find(ifconfig_cmd->iface);
491     if (netif == NULL) {
492         ERR_IFCONFIG_STRING_PUT(ret, "Device not found\n");
493         goto out;
494     }
495 
496     if (ifconfig_cmd->option & IFCONFIG_OPTION_SET_UP) {
497         (void)netif_set_up(netif);
498         goto out;
499     } else if (ifconfig_cmd->option & IFCONFIG_OPTION_SET_DOWN) {
500         (void)netif_set_down(netif);
501         goto out;
502     }
503 
504     if ((ifconfig_cmd->option & IFCONFIG_OPTION_SET_IP) ||
505         (ifconfig_cmd->option & IFCONFIG_OPTION_SET_NETMASK) ||
506         (ifconfig_cmd->option & IFCONFIG_OPTION_SET_HW)) {
507         (void)netif_set_down(netif);
508     }
509 
510     if (ifconfig_cmd->option & IFCONFIG_OPTION_SET_IP) {
511         ip_addr_set_val(&ip_addr, &(ifconfig_cmd->ip_addr));
512         if (IP_IS_V4_VAL(ifconfig_cmd->ip_addr)) {
513             /* check the address is not multicast/broadcast/0/loopback */
514             if (ip_addr_ismulticast_val(&ip_addr) || ip_addr_isbroadcast_val(&ip_addr, netif) ||
515                 ip_addr_isany(&ip_addr) || ip_addr_isloopback(&ip_addr)) {
516                 ERR_IFCONFIG_STRING_PUT(ret, "Don't set ip as a multicast/broadcast/0/loopback address!\n");
517                 goto out;
518             }
519 
520             /* reset gateway if new and previous ipaddr not in same net */
521             if (!ip_addr_netcmp_val(&ip_addr, &netif->ip_addr, ip_2_ip4(&netif->netmask))) {
522                 ip_addr_set_zero(&netif->gw);
523                 if (netif == netif_default) {
524                     (void)netif_set_default(NULL);
525                 }
526             }
527 
528             /* lwip disallow two netif sit in same net at the same time */
529             loc_netif = netif_list;
530             while (loc_netif != NULL) {
531                 if (loc_netif == netif) {
532                     loc_netif = loc_netif->next;
533                     continue;
534                 }
535                 if (IP_IS_V4_VAL(ifconfig_cmd->ip_addr) && ip_addr_cmp(&netif->netmask, &loc_netif->netmask) &&
536                     ip_addr_netcmp_val(&loc_netif->ip_addr, &ip_addr, ip_2_ip4(&netif->netmask))) {
537                     ERR_IFCONFIG_STRING_PUT(ret, "Duplicate network!\n");
538                     goto out;
539                 }
540                 loc_netif = loc_netif->next;
541             }
542 
543 #if LWIP_DHCP
544             if (netif_dhcp_data(netif) && netif_dhcp_data(netif)->state != DHCP_STATE_OFF) {
545                 (void)netif_dhcp_off(netif);
546             }
547 #endif
548             netif_set_ipaddr(netif, ip_2_ip4(&ip_addr));
549         } else if (IP_IS_V6_VAL(ifconfig_cmd->ip_addr)) {
550             idx = -1;
551             err = netif_add_ip6_address(netif, ip_2_ip6(&ip_addr), &idx);
552             if (err != ERR_OK || idx == -1) {
553                 ERR_IFCONFIG_STRING_PUT(ret, "The IPv6 has reached the Global address limit, "
554                                              "you should delete one address before add!\n");
555                 goto out;
556             }
557         }
558     }
559 
560     if (ifconfig_cmd->option & IFCONFIG_OPTION_DEL_IP) {
561         (void)netif_do_rmv_ipv6_addr(netif, &ifconfig_cmd->ip_addr);
562     }
563 
564     if (ifconfig_cmd->option & IFCONFIG_OPTION_SET_NETMASK) {
565         ip_addr_set_val(&netmask, &(ifconfig_cmd->netmask));
566         /* check data valid */
567         if (!ip_addr_netmask_valid(ip_2_ip4(&netmask))) {
568             ERR_IFCONFIG_STRING_PUT(ret, "ifconfig: netmask is invalid!\n");
569             goto out;
570         }
571 
572 #if LWIP_DHCP
573         if (netif_dhcp_data(netif) && netif_dhcp_data(netif)->state != DHCP_STATE_OFF) {
574             (void)netif_dhcp_off(netif);
575         }
576 #endif
577         if (netif_ip4_netmask(netif)->addr != ip_2_ip4(&netmask)->addr) {
578             /* lwip disallow two netif sit in same net at the same time */
579             loc_netif = netif_list;
580             while (loc_netif != NULL) {
581                 if (loc_netif == netif) {
582                     loc_netif = loc_netif->next;
583                     continue;
584                 }
585                 if (ip_addr_cmp(&loc_netif->netmask, &netmask) &&
586                     ip_addr_netcmp(&loc_netif->ip_addr, &netif->ip_addr, ip_2_ip4(&netmask))) {
587                     ERR_IFCONFIG_STRING_PUT(ret, "Duplicate network!\n");
588                     goto out;
589                 }
590                 loc_netif = loc_netif->next;
591             }
592             netif_set_netmask(netif, ip_2_ip4(&netmask));
593             /* check if gateway still reachable */
594             if (!ip_addr_netcmp(&netif->gw, &netif->ip_addr, ip_2_ip4(&netmask))) {
595                 ip_addr_set_zero(&(netif->gw));
596                 if (netif == netif_default) {
597                     (void)netif_set_default(NULL);
598                 }
599             }
600         }
601     }
602 
603     if ((ifconfig_cmd->option & IFCONFIG_OPTION_SET_HW) &&
604         netif_set_hwaddr(netif, ifconfig_cmd->ethaddr, NETIF_MAX_HWADDR_LEN) != ERR_OK) {
605         ERR_IFCONFIG_STRING_PUT(ret, "Failed to update the hwaddr of the device!\n");
606         (void)netif_set_up(netif);
607         goto out;
608     }
609 
610     if ((ifconfig_cmd->option & IFCONFIG_OPTION_SET_IP) ||
611         (ifconfig_cmd->option & IFCONFIG_OPTION_SET_NETMASK) ||
612         (ifconfig_cmd->option & IFCONFIG_OPTION_SET_HW)) {
613         (void)netif_set_up(netif);
614     }
615 
616     if (ifconfig_cmd->option & IFCONFIG_OPTION_SET_GW) {
617         ip_addr_set_val(&gw, &ifconfig_cmd->gw);
618 
619         /* check the address multicast/0/loopback */
620         if (ip_addr_ismulticast_val(&gw) || ip_addr_isbroadcast_val(&gw, netif) ||
621             ip_addr_isany(&gw) || ip_addr_isloopback(&gw)) {
622             ERR_IFCONFIG_STRING_PUT(ret, "Don't set gateway as a multicast/broadcast/0/loopback address!\n");
623             goto out;
624         }
625 
626         /* check if reachable */
627         if (!ip_addr_netcmp_val(&gw, &netif->ip_addr, ip_2_ip4(&netif->netmask))) {
628             ERR_IFCONFIG_STRING_PUT(ret, "The address is unreachable!\n");
629             goto out;
630         }
631 
632         if (netif_default != netif) {
633             ip_addr_set_zero(&netif->gw);
634             (void)netif_set_default(netif);
635         }
636 
637 #if LWIP_DHCP
638         if (netif_dhcp_data(netif) && netif_dhcp_data(netif)->state != DHCP_STATE_OFF) {
639             (void)netif_dhcp_off(netif);
640         }
641 #endif
642         netif_set_gw(netif, ip_2_ip4(&gw));
643     }
644 
645     if (ifconfig_cmd->option & IFCONFIG_OPTION_SET_MTU) {
646         mtu = ifconfig_cmd->mtu;
647         if (netif_set_mtu(netif, mtu) != ERR_OK) {
648             ERR_IFCONFIG_STRING_PUT(ret, "Invalid MTU\n");
649         }
650     }
651 out:
652     sys_sem_signal(&ifconfig_cmd->cb_completed);
653 }
654 
655 
lwip_printsize(size_t size)656 void lwip_printsize(size_t size)
657 {
658     static const char *SIZES[] = {"B", "KB", "MB", "GB"};
659     size_t divis = 0;
660     size_t rem = 0;
661 
662     while ((size >= 1024) && (divis < ((sizeof(SIZES) / sizeof(char *)) - 1))) {
663         rem = (size % 1024);
664         divis++;
665         size /= 1024;
666     }
667 
668     PRINTK("(%.1f %s) \r\n", (float)size + (float)rem / 1024.0, SIZES[divis]);
669 }
670 
lwip_ifconfig_usage(const char * cmd)671 LWIP_STATIC void lwip_ifconfig_usage(const char *cmd)
672 {
673     PRINTK("Usage:"\
674          "\n%s [-a] "\
675          "\n[interface]"\
676          "\n[interface ipaddr] <netmask mask> <gateway gw>"\
677          "\n[interface inet6 add|del ipaddr]"\
678          "\n[interface hw ether MAC]"\
679          "\n[interface mtu NN]"\
680          "\n[interface up|down]\n",
681            cmd);
682 }
683 
lwip_ifconfig(int argc,const char ** argv)684 u32_t lwip_ifconfig(int argc, const char **argv)
685 {
686     int i;
687     static struct ifconfig_option ifconfig_cmd;
688     err_t ret;
689 
690 #if LWIP_STATS
691     u32_t stat_err_cnt;
692     u32_t stat_drop_cnt;
693     u32_t stat_rx_or_tx_cnt;
694     u32_t stat_rx_or_tx_bytes;
695 #endif
696 
697 #if LWIP_ARP
698     u32_t retval;
699     struct netif *netiftmp = NULL;
700 #if LWIP_ENABLE_IP_CONFLICT_SIGNAL
701     u32_t old_ip4addr;
702     err_t        err;
703     extern sys_sem_t ip_conflict_detect;
704     extern u32_t is_ip_conflict_signal;
705 #endif /* LWIP_ENABLE_IP_CONFLICT_SIGNAL */
706 #endif /* LWIP_ARP */
707 #if LWIP_IPV6
708     extern sys_sem_t dup_addr_detect;
709     extern u32_t is_dup_detect_initialized;
710 #endif
711     if (!tcpip_init_finish) {
712         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
713         return 2;
714     }
715     /* To support "ifconfig -a" command
716          RX packets:XXXX errors:X dropped:X overruns:X bytes:XXXX (Human readable format)
717          TX packets:XXXX errors:X dropped:X overruns:X bytes:XXXX (Human readable format)
718 
719          Below is assumed for 'overrun' stat.
720          Linux Kernel:
721                 RX: FIFO overrun
722                     Data structure: net_device->stats->rx_fifo_errors
723                     Flag which is marked when FIFO overrun: ENRSR_FO
724 
725                 Function: ei_receive->ENRSR_FO
726 
727                 TX: A "FIFO underrun" occurred during transmit.
728                     Data structure: net_device->stats->tx_fifo_errors
729                     Flag which is marked when FIFO underrun: ENTSR_FU
730 
731                 Function: ei_tx_intr->ENTSR_FU
732 
733         LWIP:
734             So in our case,
735             while receiving a packet RX case, if the buffer is full (trypost - it is sys_mbox_trypost)
736             the error will be returned, we can consider that an overflow has happened.
737             So this can be RX overrun.
738 
739             But while transmitting a packet TX case, underrun cannot happen because it block on the
740             message Q if it is full (NOT trypost - it is sys_mbox_post). So TX overrun is always 0.
741     */
742     if (argc) {
743         if (strcmp("-a", argv[0]) == 0) {
744 #if LWIP_STATS
745             stat_rx_or_tx_cnt = lwip_stats.ip.recv;
746             stat_err_cnt = (u32_t)(lwip_stats.ip.ip_rx_err +
747                                    lwip_stats.ip.lenerr +
748                                    lwip_stats.ip.chkerr +
749                                    lwip_stats.ip.opterr +
750                                    lwip_stats.ip.proterr);
751             stat_drop_cnt = (u32_t)(lwip_stats.ip.drop + lwip_stats.link.link_rx_drop);
752             stat_rx_or_tx_bytes = lwip_stats.ip.ip_rx_bytes;
753 
754             PRINTK("%18s:%u\t errors:%u\t ip dropped:%u\t link dropped:%u\t overrun:%d\t bytes:%u ",
755                    "RX packets",
756                    stat_rx_or_tx_cnt,
757                    stat_err_cnt,
758                    stat_drop_cnt,
759                    lwip_stats.link.link_rx_drop,
760                    lwip_stats.ip.link_rx_overrun,
761                    stat_rx_or_tx_bytes);
762 
763             /* Print in Human readable format of the incoming bytes */
764             lwip_printsize(lwip_stats.ip.ip_rx_bytes);
765 #if IP6_STATS
766             stat_rx_or_tx_cnt = lwip_stats.ip6.recv;
767             stat_err_cnt = (u32_t)(lwip_stats.ip6.ip_rx_err +
768                                    lwip_stats.ip6.lenerr +
769                                    lwip_stats.ip6.chkerr +
770                                    lwip_stats.ip6.opterr +
771                                    lwip_stats.ip6.proterr);
772             stat_drop_cnt = lwip_stats.ip6.drop;
773             stat_rx_or_tx_bytes = lwip_stats.ip6.ip_rx_bytes;
774 
775             PRINTK("%18s:%u\t errors:%u\t dropped:%u\t overrun:%d\t bytes:%u ",
776                    "RX packets(ip6)",
777                    stat_rx_or_tx_cnt,
778                    stat_err_cnt,
779                    stat_drop_cnt,
780                    lwip_stats.ip.link_rx_overrun,
781                    stat_rx_or_tx_bytes);
782 
783             /* Print in Human readable format of the incoming bytes */
784             lwip_printsize(lwip_stats.ip6.ip_rx_bytes);
785 #endif
786             stat_rx_or_tx_cnt = (u32_t)(lwip_stats.ip.fw + lwip_stats.ip.xmit);
787             stat_err_cnt = (u32_t)(lwip_stats.ip.rterr + lwip_stats.ip.ip_tx_err);
788             /* IP layer drop stat param is not maintained, failure at IP is considered in 'errors' stat */
789             stat_drop_cnt = lwip_stats.link.link_tx_drop;
790             stat_rx_or_tx_bytes = lwip_stats.ip.ip_tx_bytes;
791 
792             PRINTK("%18s:%u\t errors:%u\t link dropped:%u\t overrun:0\t bytes:%u",
793                    "TX packets",
794                    stat_rx_or_tx_cnt,
795                    stat_err_cnt,
796                    stat_drop_cnt,
797                    stat_rx_or_tx_bytes);
798 
799             /* Print in Human readable format of the outgoing bytes */
800             lwip_printsize(lwip_stats.ip.ip_tx_bytes);
801 
802             stat_rx_or_tx_cnt = (u32_t)(lwip_stats.ip6.fw + lwip_stats.ip6.xmit);
803             stat_err_cnt = (u32_t)(lwip_stats.ip6.rterr + lwip_stats.ip6.ip_tx_err);
804             stat_rx_or_tx_bytes = lwip_stats.ip6.ip_tx_bytes;
805 
806             PRINTK("%18s:%u\t errors:%u\t overrun:0\t bytes:%u",
807                    "TX packets(ip6)",
808                    stat_rx_or_tx_cnt,
809                    stat_err_cnt,
810                    stat_rx_or_tx_bytes);
811 
812             /* Print in Human readable format of the outgoing bytes */
813             lwip_printsize(lwip_stats.ip6.ip_tx_bytes);
814 #endif /* LWIP_STATS */
815             return 0;
816         }
817     }
818 
819     (void)memset_s(&ifconfig_cmd, sizeof(ifconfig_cmd), 0, sizeof(ifconfig_cmd));
820     if (sys_sem_new(&ifconfig_cmd.cb_completed, 0) != ERR_OK) {
821         PRINTK("%s: sys_sem_new fail\n", __FUNCTION__);
822         return 1;
823     }
824 
825     i = 0;
826     /* Get the interface */
827     if (argc > 0) {
828         if (strlen(argv[i]) < IFNAMSIZ) {
829             if (strncpy_s(ifconfig_cmd.iface, IFNAMSIZ, argv[i], (strlen(argv[i]))) != EOK) {
830                 sys_sem_free(&ifconfig_cmd.cb_completed);
831                 PRINTK("ifconfig : strncpy_s error\n");
832                 return 1;
833             }
834             ifconfig_cmd.iface[IFNAMSIZ - 1] = '\0';
835         } else {
836             sys_sem_free(&ifconfig_cmd.cb_completed);
837             PRINTK("ifconfig : interface name is too big\n");
838             return 1;
839         }
840         i++;
841         argc--;
842         if (argc == 0) {
843             /* no more arguments, show the interface state. */
844             ret = tcpip_callback(lwip_ifconfig_show_internal, &ifconfig_cmd);
845             if (ret != ERR_OK) {
846                 sys_sem_free(&ifconfig_cmd.cb_completed);
847                 PRINTK("ifconfig : internal error, l:%d err:%d\n", __LINE__, ret);
848                 return 1;
849             }
850             (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
851             sys_sem_free(&ifconfig_cmd.cb_completed);
852             ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
853             PRINTK("%s", ifconfig_cmd.cb_print_buf);
854             return 0;
855         }
856     } else {
857         /* no more arguments, show all the interface state. */
858         ret = tcpip_callback(lwip_ifconfig_show_internal, &ifconfig_cmd);
859         if (ret != ERR_OK) {
860             sys_sem_free(&ifconfig_cmd.cb_completed);
861             PRINTK("ifconfig : internal error, l:%d err:%d\n", __LINE__, ret);
862             return 1;
863         }
864         (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
865         sys_sem_free(&ifconfig_cmd.cb_completed);
866         ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
867         PRINTK("%s", ifconfig_cmd.cb_print_buf);
868 
869         return 0;
870     }
871 
872     /* ifup/ifdown */
873     if (strcmp("up", argv[i]) == 0) {
874         ifconfig_cmd.option |= IFCONFIG_OPTION_SET_UP;
875         /* setup the interface, other arguments is ignored. */
876         ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
877         if (ret != ERR_OK) {
878             sys_sem_free(&ifconfig_cmd.cb_completed);
879             PRINTK("ifconfig : internal error, l:%d err:%d\n", __LINE__, ret);
880             return 1;
881         }
882         (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
883         sys_sem_free(&ifconfig_cmd.cb_completed);
884         ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
885         PRINTK("%s", ifconfig_cmd.cb_print_buf);
886         return 0;
887     } else if (strcmp("down", argv[i]) == 0) {
888         ifconfig_cmd.option |= IFCONFIG_OPTION_SET_DOWN;
889         /* setdown the interface, other arguments is ignored. */
890         ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
891         if (ret != ERR_OK) {
892             sys_sem_free(&ifconfig_cmd.cb_completed);
893             PRINTK("ifconfig : internal error, l:%d err:%d\n", __LINE__, ret);
894             return 1;
895         }
896         (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
897         sys_sem_free(&ifconfig_cmd.cb_completed);
898         ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
899         PRINTK("%s", ifconfig_cmd.cb_print_buf);
900         return 0;
901     }
902     /* check if set the ip address. */
903 #if LWIP_ARP
904     netiftmp = netifapi_netif_find_by_name(ifconfig_cmd.iface);
905     if (netiftmp == NULL) {
906         sys_sem_free(&ifconfig_cmd.cb_completed);
907         PRINTK("ifconfig : Interface %s not found\n", ifconfig_cmd.iface);
908         return 1;
909     }
910 #if LWIP_ENABLE_IP_CONFLICT_SIGNAL
911     old_ip4addr = ipaddr_addr(ipaddr_ntoa(&netiftmp->ip_addr));
912 #endif /* LWIP_ENABLE_IP_CONFLICT_SIGNAL */
913 #endif /* LWIP_ARP */
914     if (!strcmp(argv[i], "inet") || ip4addr_aton(argv[i], ip_2_ip4(&ifconfig_cmd.ip_addr))) {
915         if (!strcmp(argv[i], "inet")) {
916             if (argc <= 1) {
917                 sys_sem_free(&ifconfig_cmd.cb_completed);
918                 goto ifconfig_error;
919             }
920 
921             if (!ip4addr_aton(argv[i + 1], ip_2_ip4(&ifconfig_cmd.ip_addr))) {
922                 sys_sem_free(&ifconfig_cmd.cb_completed);
923                 PRINTK("ifconfig : Invalid IPv4 Address\n");
924                 return 1;
925             }
926             argc--;
927             i++;
928         }
929         IP_SET_TYPE_VAL((ifconfig_cmd.ip_addr), IPADDR_TYPE_V4);
930 #if LWIP_ARP
931         if (!ip_addr_cmp(&ifconfig_cmd.ip_addr, &netiftmp->ip_addr)) {
932             ifconfig_cmd.option |= IFCONFIG_OPTION_SET_IP;
933         }
934 #else
935         ifconfig_cmd.option |= IFCONFIG_OPTION_SET_IP;
936 #endif /* LWIP_ARP */
937         argc--;
938         i++;
939     } else if (!strcmp(argv[i], "inet6")) {
940         if (argc < 3) {
941             sys_sem_free(&ifconfig_cmd.cb_completed);
942             goto ifconfig_error;
943         }
944         if (strcmp(argv[i + 1], "add") && strcmp(argv[i + 1], "del")) {
945             sys_sem_free(&ifconfig_cmd.cb_completed);
946             goto ifconfig_error;
947         }
948 
949         if (!ip6addr_aton(argv[i + 2], ip_2_ip6(&ifconfig_cmd.ip_addr))) {
950             sys_sem_free(&ifconfig_cmd.cb_completed);
951             PRINTK("ifconfig : Invalid IPv6 Address\n");
952             return 1;
953         }
954 
955         IP_SET_TYPE_VAL((ifconfig_cmd.ip_addr), IPADDR_TYPE_V6);
956         ifconfig_cmd.option |= (!strcmp(argv[i + 1], "add") ? IFCONFIG_OPTION_SET_IP : IFCONFIG_OPTION_DEL_IP);
957         argc -= 3;
958         i += 3;
959     }
960 
961     if (ifconfig_cmd.option & IFCONFIG_OPTION_DEL_IP) {
962         if (argc != 0) {
963             sys_sem_free(&ifconfig_cmd.cb_completed);
964             goto ifconfig_error;
965         }
966     }
967 
968     while (argc > 0) {
969         if (strcmp("netmask", argv[i]) == 0 && (argc > 1) && (ipaddr_addr(argv[i + 1]) != IPADDR_NONE)) {
970             /* if set netmask */
971             ip_addr_set_ip4_u32_val((ifconfig_cmd.netmask), ipaddr_addr(argv[i + 1]));
972             ifconfig_cmd.option |= IFCONFIG_OPTION_SET_NETMASK;
973             i += 2;
974             argc -= 2;
975         } else if (strcmp("gateway", argv[i]) == 0 && (argc > 1) && (ipaddr_addr(argv[i + 1]) != IPADDR_NONE)) {
976             /* if set gateway */
977             ip_addr_set_ip4_u32_val((ifconfig_cmd.gw), ipaddr_addr(argv[i + 1]));
978             ifconfig_cmd.option |= IFCONFIG_OPTION_SET_GW;
979             i += 2;
980             argc -= 2;
981         } else if (strcmp("hw", argv[i]) == 0 && argc > 2 && strcmp("ether", argv[i + 1]) == 0) {
982             /* if set HWaddr */
983             char *digit = NULL;
984             u32_t macaddrlen = strlen(argv[i + 2]) + 1;
985             char tmpStr[MAX_MACADDR_STRING_LENGTH];
986             char *tmpStr1 = NULL;
987             char *saveptr = NULL;
988             int j;
989 
990             if (macaddrlen != MAX_MACADDR_STRING_LENGTH) {
991                 sys_sem_free(&ifconfig_cmd.cb_completed);
992                 PRINTK("ifconfig : wrong MAC address format\n");
993                 return 1;
994             }
995 
996             if (strncpy_s(tmpStr, MAX_MACADDR_STRING_LENGTH, argv[i + 2], macaddrlen - 1) != 0) {
997                 sys_sem_free(&ifconfig_cmd.cb_completed);
998                 PRINTK("ifconfig : wrong MAC address\n");
999                 return 1;
1000             }
1001             for (j = 0, tmpStr1 = tmpStr; j < 6; j++, tmpStr1 = NULL) {
1002                 digit = strtok_r(tmpStr1, ":", &saveptr);
1003                 if ((digit == NULL) || (strlen(digit) > 2)) {
1004                     sys_sem_free(&ifconfig_cmd.cb_completed);
1005                     PRINTK("ifconfig : wrong MAC address format\n");
1006                     return 1;
1007                 }
1008                 CONVERT_STRING_TO_HEX(digit, ifconfig_cmd.ethaddr[j]);
1009             }
1010             ifconfig_cmd.option |= IFCONFIG_OPTION_SET_HW;
1011             i += 3;
1012             argc -= 3;
1013         } else if (!strcmp("mtu", argv[i]) && (argc > 1)) {
1014             /* if set mtu */
1015             if ((atoi(argv[i + 1]) < 0) || (atoi(argv[i + 1]) > 0xFFFF)) {
1016                 sys_sem_free(&ifconfig_cmd.cb_completed);
1017                 PRINTK("\nifconfig: Invalid argument for mtu\n");
1018                 goto ifconfig_error;
1019             }
1020 
1021             ifconfig_cmd.mtu = (u16_t)(atoi(argv[i + 1]));
1022             ifconfig_cmd.option |= IFCONFIG_OPTION_SET_MTU;
1023             i += 2;
1024             argc -= 2;
1025         } else {
1026             sys_sem_free(&ifconfig_cmd.cb_completed);
1027             goto ifconfig_error;
1028         }
1029     }
1030 
1031 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
1032     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
1033       /* Create the semaphore for ip conflict detection. */
1034       if (sys_sem_new(&ip_conflict_detect, 0) != ERR_OK) {
1035         sys_sem_free(&ifconfig_cmd.cb_completed);
1036         PRINTK("ifconfig: internal error\n");
1037         return 1;
1038       }
1039       is_ip_conflict_signal = 1;
1040     }
1041 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
1042 
1043 #if LWIP_IPV6
1044     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V6_VAL((ifconfig_cmd.ip_addr))) {
1045         /* Create the semaphore for duplicate address detection. */
1046         if (sys_sem_new(&dup_addr_detect, 0) != ERR_OK) {
1047             sys_sem_free(&ifconfig_cmd.cb_completed);
1048             PRINTK("ifconfig: internal error\n");
1049             return 1;
1050         }
1051         is_dup_detect_initialized = 1;
1052     }
1053 #endif /* LWIP_IPV6 */
1054 
1055     ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
1056     if (ret != ERR_OK) {
1057         sys_sem_free(&ifconfig_cmd.cb_completed);
1058 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
1059         if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
1060           is_ip_conflict_signal = 0;
1061           sys_sem_free(&ip_conflict_detect);
1062         }
1063 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
1064 
1065 #if LWIP_IPV6
1066         if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V6_VAL((ifconfig_cmd.ip_addr))) {
1067             is_dup_detect_initialized = 0;
1068             sys_sem_free(&dup_addr_detect);
1069         }
1070 #endif /* LWIP_IPV6 */
1071 
1072         PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
1073         return 1;
1074     }
1075     (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
1076     ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
1077     PRINTK("%s", ifconfig_cmd.cb_print_buf);
1078 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
1079     /* Pend 2 seconds for waiting the arp reply if the ip is already in use.*/
1080     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
1081       err = (err_t)sys_arch_sem_wait(&ip_conflict_detect, DUP_ARP_DETECT_TIME);
1082       is_ip_conflict_signal = 0;
1083       sys_sem_free(&ip_conflict_detect);
1084       if (err < 0) {
1085         /* The result neither conflict nor timeout. */
1086         PRINT_ERR("ifconfig: internal error\n");
1087         sys_sem_free(&ifconfig_cmd.cb_completed);
1088         return 1;
1089       } else if (err < DUP_ARP_DETECT_TIME) {
1090         /* Duplicate use of new ip, restore it to the old one. */
1091         PRINT_ERR("ifconfig: ip conflict!\n");
1092         ip_addr_set_ip4_u32_val(ifconfig_cmd.ip_addr, old_ip4addr);
1093         ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
1094         if (ret != ERR_OK) {
1095           sys_sem_free(&ifconfig_cmd.cb_completed);
1096           PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
1097           return 1;
1098         }
1099         (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
1100         sys_sem_free(&ifconfig_cmd.cb_completed);
1101         ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
1102         PRINTK("%s", ifconfig_cmd.cb_print_buf);
1103         return 1;
1104       }
1105     }
1106 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
1107 #if LWIP_IPV6
1108     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V6_VAL(ifconfig_cmd.ip_addr)) {
1109         /* Pend 2 seconds for waiting the arp reply if the ip is already in use.*/
1110         retval = sys_arch_sem_wait(&dup_addr_detect, DUP_ARP_DETECT_TIME);
1111         is_dup_detect_initialized = 0;
1112         sys_sem_free(&dup_addr_detect);
1113         if (retval == SYS_ARCH_ERROR) {
1114             sys_sem_free(&ifconfig_cmd.cb_completed);
1115             /* The result neither conflict nor timeout. */
1116             PRINT_ERR("ifconfig: internal error\n");
1117             return 1;
1118         } else if (retval < DUP_ARP_DETECT_TIME) {
1119             /* Duplicate use of new ip, restore it to the old one. */
1120             struct netif *netif = NULL;
1121             PRINT_ERR("ifconfig: IP conflict!\n");
1122             netif = netifapi_netif_find_by_name(ifconfig_cmd.iface);
1123             i = netif_get_ip6_addr_match(netif, &ifconfig_cmd.ip_addr.u_addr.ip6);
1124             if (i >= 0) {
1125                 netif->ip6_addr_state[i] = IP6_ADDR_INVALID;
1126             }
1127 
1128             sys_sem_free(&ifconfig_cmd.cb_completed);
1129             ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
1130             PRINTK("%s", ifconfig_cmd.cb_print_buf);
1131             return 1;
1132         }
1133     }
1134 #endif /* LWIP_IPV6 */
1135     sys_sem_free(&ifconfig_cmd.cb_completed);
1136     return 0;
1137 ifconfig_error:
1138     lwip_ifconfig_usage("ifconfig");
1139     return 1;
1140 }
1141 
1142 #ifdef LOSCFG_SHELL
1143 SHELLCMD_ENTRY(ifconfig_shellcmd, CMD_TYPE_EX, "ifconfig", XARGS, (CmdCallBackFunc)lwip_ifconfig);
1144 #endif /* LOSCFG_SHELL */
1145 /* add arp entry to arp cache */
1146 #define ARP_OPTION_ADD      1
1147 /* delete arp entry to arp cache */
1148 #define ARP_OPTION_DEL      2
1149 /* print all arp entry in arp cache */
1150 #define ARP_OPTION_SHOW     3
1151 
1152 struct arp_option {
1153     /* see the ARP_OPTION_ above */
1154     int option;
1155     /* descriptive abbreviation of network interface */
1156     char iface[IFNAMSIZ];
1157     /* ip addr */
1158     unsigned int ipaddr;
1159     /* hw addr */
1160     unsigned char ethaddr[6];
1161     /* when using telnet, printf to the telnet socket will result in system  */
1162     /* deadlock.so don't do it.cahe the data to prinf to a buf, and when     */
1163     /* callback returns, then printf the data out to the telnet socket       */
1164     sys_sem_t cb_completed;
1165     char cb_print_buf[PRINT_BUF_LEN];
1166     int print_buf_len;
1167 };
1168 
1169 #ifndef LWIP_TESTBED
1170 LWIP_STATIC
1171 #endif
lwip_arp_show_internal(struct netif * netif,char * printf_buf,unsigned int buf_len)1172 void lwip_arp_show_internal(struct netif *netif, char *printf_buf, unsigned int buf_len)
1173 {
1174     u8_t state, i;
1175     int ret;
1176     char *tmp = printf_buf;
1177     if (buf_len < 1) {
1178         return;
1179     }
1180     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%-24s%-24s%-12s%-12s\n", "Address", "HWaddress", "Iface", "Type");
1181     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
1182         return;
1183     tmp += ret;
1184     buf_len -= (unsigned int)ret;
1185 
1186     if (netif != NULL) {
1187         for (i = 0; i < ARP_TABLE_SIZE; ++i) {
1188             state = arp_table[i].state;
1189             if (((state == ETHARP_STATE_STABLE)
1190                  #if ETHARP_SUPPORT_STATIC_ENTRIES
1191                  || (state == ETHARP_STATE_STATIC)
1192 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
1193                 ) && arp_table[i].netif) {
1194 
1195                 if (strcmp(netif_get_name(netif), netif_get_name(arp_table[i].netif)) != 0) {
1196                     continue;
1197                 }
1198 
1199                 ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%-24s%02X:%02X:%02X:%02X:%02X:%02X       %s        %s\n",
1200                                  ip4addr_ntoa(&arp_table[i].ipaddr),
1201                                  arp_table[i].ethaddr.addr[0], arp_table[i].ethaddr.addr[1],
1202                                  arp_table[i].ethaddr.addr[2], arp_table[i].ethaddr.addr[3],
1203                                  arp_table[i].ethaddr.addr[4], arp_table[i].ethaddr.addr[5],
1204                                  netif_get_name(netif),
1205 #if ETHARP_SUPPORT_STATIC_ENTRIES
1206                                  ((state == ETHARP_STATE_STATIC) ? "static" : "dynamic")
1207 #else
1208                     "dynamic"
1209 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
1210                 );
1211                 if ((ret <= 0) || ((unsigned int)ret >= buf_len))
1212                     return;
1213                 tmp += ret;
1214                 buf_len -= (unsigned int)ret;
1215             }
1216         }
1217     } else {
1218         for (i = 0; i < ARP_TABLE_SIZE; ++i) {
1219             state = arp_table[i].state;
1220             if (((state == ETHARP_STATE_STABLE)
1221                  #if ETHARP_SUPPORT_STATIC_ENTRIES
1222                  || (state == ETHARP_STATE_STATIC)
1223 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
1224                 ) && arp_table[i].netif) {
1225                 ret = snprintf_s(tmp, buf_len, (buf_len - 1), "%-24s%02X:%02X:%02X:%02X:%02X:%02X       %s        %s\n",
1226                                  ip4addr_ntoa(&arp_table[i].ipaddr),
1227                                  arp_table[i].ethaddr.addr[0], arp_table[i].ethaddr.addr[1],
1228                                  arp_table[i].ethaddr.addr[2], arp_table[i].ethaddr.addr[3],
1229                                  arp_table[i].ethaddr.addr[4], arp_table[i].ethaddr.addr[5],
1230                                  netif_get_name(arp_table[i].netif),
1231 #if ETHARP_SUPPORT_STATIC_ENTRIES
1232                                  ((state == ETHARP_STATE_STATIC) ? "static" : "dynamic")
1233 #else
1234                     "dynamic"
1235 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
1236                 );
1237                 if ((ret <= 0) || ((unsigned int)ret >= buf_len))
1238                     return;
1239                 tmp += ret;
1240                 buf_len -= (unsigned int)ret;
1241             }
1242         }
1243     }
1244 }
1245 
1246 #ifndef LWIP_TESTBED
1247 LWIP_STATIC
1248 #endif
lwip_arp_internal(void * arg)1249 void lwip_arp_internal(void *arg)
1250 {
1251 #if LWIP_IPV4
1252     struct arp_option *arp_cmd = (struct arp_option *)arg;
1253     struct netif *netif = NULL;
1254     struct eth_addr ethaddr;
1255     ip4_addr_t ipaddr;
1256     err_t ret = 0;
1257     int type = 0;
1258 
1259     if (arp_cmd->iface[0] == 'd' && arp_cmd->iface[1] == 'e') {
1260         netif = NULL;
1261     } else {
1262         /* find the specified netif by it's name */
1263         netif = netif_find(arp_cmd->iface);
1264         if (netif == NULL) {
1265             (void)snprintf_s(arp_cmd->cb_print_buf, PRINT_BUF_LEN, (PRINT_BUF_LEN - 1), "No such device\n");
1266             goto out;
1267         }
1268     }
1269 
1270     type = arp_cmd->option;
1271     switch (type) {
1272         case ARP_OPTION_SHOW:
1273             if (netif != NULL) {
1274                 lwip_arp_show_internal(netif, arp_cmd->cb_print_buf, PRINT_BUF_LEN);
1275             } else {
1276                 lwip_arp_show_internal(NULL, arp_cmd->cb_print_buf, PRINT_BUF_LEN);
1277             }
1278             break;
1279 
1280         case ARP_OPTION_ADD:
1281 #if ETHARP_SUPPORT_STATIC_ENTRIES
1282             ipaddr.addr = arp_cmd->ipaddr;
1283             (void)memcpy_s(ethaddr.addr, sizeof(ethaddr.addr), arp_cmd->ethaddr, 6);
1284             if (netif != NULL) {
1285                 if (ip4_addr_netcmp(&ipaddr, ip_2_ip4(&(netif->ip_addr)), ip_2_ip4(&(netif->netmask)))) {
1286                     ret = etharp_update_arp_entry(netif, &ipaddr, &ethaddr,
1287                                                   ETHARP_FLAG_TRY_HARD | ETHARP_FLAG_STATIC_ENTRY);
1288                 } else {
1289                     ret = ERR_RTE;
1290                 }
1291             } else {
1292                 ret = etharp_add_static_entry(&ipaddr, &ethaddr);
1293             }
1294 #else
1295             ret = ERR_ARG;
1296 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
1297             break;
1298 
1299         case ARP_OPTION_DEL:
1300             ipaddr.addr = arp_cmd->ipaddr;
1301             (void)memcpy_s(ethaddr.addr, sizeof(ethaddr.addr), arp_cmd->ethaddr, 6);
1302             if (netif != NULL) {
1303                 ret = etharp_delete_arp_entry(netif, &ipaddr);
1304             } else {
1305                 for (netif = netif_list; netif != NULL; netif = netif->next) {
1306                     ret = etharp_delete_arp_entry(netif, &ipaddr);
1307                     if (ret == ERR_OK) {
1308                         /*only can del success one time*/
1309                         break;
1310                     }
1311                 }
1312             }
1313             break;
1314 
1315         default:
1316             (void)snprintf_s(arp_cmd->cb_print_buf, PRINT_BUF_LEN, (PRINT_BUF_LEN - 1), "Error\n");
1317             goto out;
1318     }
1319 
1320 out:
1321     if (type == ARP_OPTION_ADD || type == ARP_OPTION_DEL) {
1322         if (ret == ERR_MEM) {
1323             (void)snprintf_s(arp_cmd->cb_print_buf, PRINT_BUF_LEN, (PRINT_BUF_LEN - 1), "Out of memory error\n");
1324         } else if (ret == ERR_ARG) {
1325             (void)snprintf_s(arp_cmd->cb_print_buf, PRINT_BUF_LEN, (PRINT_BUF_LEN - 1), "Illegal argument\n");
1326         } else if (ret == ERR_RTE) {
1327             (void)snprintf_s(arp_cmd->cb_print_buf, PRINT_BUF_LEN, (PRINT_BUF_LEN - 1), "Network is unreachable\n");
1328         } else {
1329             (void)snprintf_s(arp_cmd->cb_print_buf, PRINT_BUF_LEN, (PRINT_BUF_LEN - 1), "Successed\n");
1330         }
1331     }
1332 #endif
1333 
1334     sys_sem_signal(&arp_cmd->cb_completed);
1335 }
1336 
1337 
lwip_arp_usage(const char * cmd)1338 LWIP_STATIC void lwip_arp_usage(const char *cmd)
1339 {
1340     PRINTK("Usage:"
1341            "\n%s"
1342            "\n%s [-i IF] -s IPADDR HWADDR"
1343            "\n%s [-i IF] -d IPADDR\n",
1344            cmd, cmd, cmd);
1345 }
1346 
lwip_arp(int argc,const char ** argv)1347 u32_t lwip_arp(int argc, const char **argv)
1348 {
1349     int i;
1350     struct arp_option arp_cmd;
1351     err_t ret;
1352     size_t interface_len = 0;
1353 
1354     (void)memset_s(&arp_cmd, sizeof(struct arp_option), 0, sizeof(struct arp_option));
1355     if (!tcpip_init_finish) {
1356         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
1357         return LOS_NOK;
1358     }
1359 
1360     arp_cmd.iface[0] = 'd';
1361     arp_cmd.iface[1] = 'e';
1362     arp_cmd.iface[2] = '0';
1363     arp_cmd.option = ARP_OPTION_SHOW;
1364     arp_cmd.print_buf_len = 0;
1365     if (sys_sem_new(&arp_cmd.cb_completed, 0) != ERR_OK) {
1366         PRINTK("%s: sys_sem_new fail\n", __FUNCTION__);
1367         return 1;
1368     }
1369 
1370     i = 0;
1371     while (argc > 0) {
1372         if (strcmp("-i", argv[i]) == 0 && (argc > 1)) {
1373             /* get the network interface's name */
1374             interface_len = strlen(argv[i + 1]);
1375             if (interface_len < IFNAMSIZ) {
1376                 if (strncmp(argv[i + 1], "lo", (sizeof("lo") - 1)) == 0) {
1377                     PRINTK("Illegal operation\n");
1378                     goto arp_error;
1379                 }
1380                 if (strncpy_s(arp_cmd.iface, IFNAMSIZ, argv[i + 1], interface_len) != EOK) {
1381                     PRINTK("strncpy_s error\n");
1382                     goto arp_error;
1383                 }
1384                 arp_cmd.iface[interface_len] = '\0';
1385             } else {
1386                 PRINTK("Iface name is big \n");
1387                 goto arp_error;
1388             }
1389             i += 2;
1390             argc -= 2;
1391         } else if (strcmp("-d", argv[i]) == 0 && (argc > 1)) {
1392             /* arp delete */
1393             arp_cmd.option = ARP_OPTION_DEL;
1394             arp_cmd.ipaddr = inet_addr(argv[i + 1]);
1395 
1396             if (arp_cmd.ipaddr == IPADDR_NONE) {
1397                 PRINTK("IP address is not correct!\n");
1398                 goto arp_error;
1399             }
1400 
1401             i += 2;
1402             argc -= 2;
1403         } else if (strcmp("-s", argv[i]) == 0 && (argc > 2)) {
1404             /* arp add */
1405             char *digit = NULL;
1406             u32_t macaddrlen = strlen(argv[i + 2]) + 1;
1407             char tmpStr[MAX_MACADDR_STRING_LENGTH];
1408             char *tmpStr1 = NULL;
1409             char *saveptr1 = NULL;
1410             char *temp = NULL;
1411             int j;
1412 
1413             arp_cmd.option = ARP_OPTION_ADD;
1414             arp_cmd.ipaddr = inet_addr(argv[i + 1]);
1415 
1416             if (arp_cmd.ipaddr == IPADDR_NONE) {
1417                 PRINTK("IP address is not correct!\n");
1418                 goto arp_error;
1419             }
1420 
1421             /*cannot add an arp entry of 127.*.*.* */
1422             if ((arp_cmd.ipaddr & (u32_t)0x0000007fUL) == (u32_t)0x0000007fUL) {
1423                 PRINTK("IP address is not correct!\n");
1424                 goto arp_error;
1425             }
1426 
1427             if (macaddrlen != MAX_MACADDR_STRING_LENGTH) {
1428                 PRINTK("Wrong MAC address length\n");
1429                 goto arp_error;
1430             }
1431 
1432             if (strncpy_s(tmpStr, MAX_MACADDR_STRING_LENGTH, argv[i + 2], macaddrlen - 1) != 0) {
1433                 PRINTK("Wrong MAC address\n");
1434                 goto arp_error;
1435             }
1436 
1437             for (j = 0, tmpStr1 = tmpStr; j < 6; j++, tmpStr1 = NULL) {
1438                 digit = strtok_r(tmpStr1, ":", &saveptr1);
1439                 if ((digit == NULL) || (strlen(digit) > 2)) {
1440                     PRINTK("MAC address is not correct\n");
1441                     goto arp_error;
1442                 }
1443 
1444                 for (temp = digit; *temp != '\0'; temp++) {
1445                     if (!isxdigit(*temp)) {
1446                         PRINTK("MAC address is not correct\n");
1447                         goto arp_error;
1448                     }
1449                 }
1450 
1451                 CONVERT_STRING_TO_HEX(digit, arp_cmd.ethaddr[j]);
1452             }
1453 
1454             i += 3;
1455             argc -= 3;
1456         } else {
1457             goto arp_error;
1458         }
1459     }
1460 
1461     ret = tcpip_callback(lwip_arp_internal, &arp_cmd);
1462     if (ret != ERR_OK) {
1463         PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
1464         sys_sem_free(&arp_cmd.cb_completed);
1465         return 1;
1466     }
1467     (void)sys_arch_sem_wait(&arp_cmd.cb_completed, 0);
1468     sys_sem_free(&arp_cmd.cb_completed);
1469     arp_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
1470     PRINTK("%s", arp_cmd.cb_print_buf);
1471     return 0;
1472 
1473 arp_error:
1474     lwip_arp_usage("arp");
1475     sys_sem_free(&arp_cmd.cb_completed);
1476     return 1;
1477 }
1478 
1479 #ifdef LOSCFG_SHELL_CMD_DEBUG
1480 SHELLCMD_ENTRY(arp_shellcmd, CMD_TYPE_EX, "arp", 1, (CmdCallBackFunc)lwip_arp);
1481 #endif /* LOSCFG_SHELL_CMD_DEBUG */
1482 
ifup_internal(void * arg)1483 void ifup_internal(void *arg)
1484 {
1485     struct netif *netif = NULL;
1486     struct if_cmd_data *ifcmd_data;
1487 
1488     ifcmd_data = (struct if_cmd_data *)arg;
1489     if (ifcmd_data == NULL) {
1490         return;
1491     }
1492     netif = netif_find(ifcmd_data->if_name);
1493     if (netif == NULL) {
1494         ifcmd_data->err = ERR_VAL;
1495     } else {
1496         (void)netif_set_up(netif);
1497         ifcmd_data->err = ERR_OK;
1498     }
1499 
1500     sys_sem_signal(&ifcmd_data->cb_completed);
1501 }
1502 
ifdown_internal(void * arg)1503 void ifdown_internal(void *arg)
1504 {
1505     struct netif *netif = NULL;
1506     struct if_cmd_data *ifcmd_data = NULL;
1507 
1508     ifcmd_data = (struct if_cmd_data *)arg;
1509     if (ifcmd_data == NULL) {
1510         return;
1511     }
1512     netif = netif_find(ifcmd_data->if_name);
1513     if (netif == NULL) {
1514         ifcmd_data->err = ERR_VAL;
1515     } else {
1516         (void)netif_set_down(netif);
1517         ifcmd_data->err = ERR_OK;
1518     }
1519 
1520     sys_sem_signal(&ifcmd_data->cb_completed);
1521 }
1522 
1523 #if LWIP_DNS
1524 #ifndef LWIP_TESTBED
1525 LWIP_STATIC
1526 #endif
gethostnameinfo(const char * host)1527 struct hostent *gethostnameinfo(const char *host)
1528 {
1529     static struct hostent hostbuf;
1530     struct hostent *hp = NULL;
1531     const size_t hstbuflen = 1024;
1532     char tmphstbuf[1024];
1533     int res;
1534     int herr;
1535 
1536     res = lwip_gethostbyname_r(host, &hostbuf, tmphstbuf, hstbuflen, &hp, &herr);
1537     /*  Check for errors.  */
1538     if (res || hp == NULL)
1539         return NULL;
1540     return hp;
1541 }
1542 
get_hostip(const char * hname)1543 LWIP_STATIC unsigned int get_hostip(const char *hname)
1544 {
1545     unsigned int ip = 0;
1546     int ret;
1547 
1548     struct hostent *pent = gethostnameinfo(hname);
1549     if (pent == NULL || pent->h_addr == NULL)
1550         return 0;
1551     ret = memcpy_s(&ip, sizeof(ip), pent->h_addr, 4);
1552     if (ret != 0) {
1553         return 0;
1554     }
1555     return ip;
1556 }
1557 #endif
1558 
1559 #if LWIP_EXT_POLL_SUPPORT
1560 static int ping_taskid = -1;
1561 static int ping_kill = 0;
1562 #define PING_ZERO_DATA_LEN 8
lwip_ping_usage(void)1563 static void lwip_ping_usage(void)
1564 {
1565     PRINTK("Usage:"\
1566          "\n  ping"
1567            "\n  ping [-n cnt] [-w interval] [-l data_len] destination"
1568            "\n  ping [-t] [-w interval] destination"
1569            "\n  ping -k");
1570     PRINTK("\n  -t means ping forever, user can use -k to stop the forever ping\n");
1571 }
1572 
osPingFunc(u32_t destip,u32_t cnt,u32_t interval,u32_t data_len)1573 LWIP_STATIC int osPingFunc(u32_t destip, u32_t cnt, u32_t interval, u32_t data_len)
1574 {
1575     int sfd;
1576     struct sockaddr_in to;
1577     struct pbuf *pbuf_resp = NULL;
1578     struct icmp_echo_hdr *iecho = NULL;
1579     struct icmp_echo_hdr *iecho_resp = NULL;
1580     struct ip_hdr *iphdr_resp = NULL;
1581     u32_t iecho_len;
1582     s16_t ip_hlen;
1583     u32_t forever;
1584     u32_t i = 0;
1585     u32_t succ_cnt = 0;
1586     u32_t failed_cnt = 0;
1587     struct timespec start, end;
1588     long timout_ms = 0;
1589     struct pollfd pfd;
1590     long rtt;
1591     int ret = 0;
1592     u32_t intrvl = 0;
1593     char *data_buf = NULL;
1594     BOOL timeout_flag = false;
1595     char buf[50];
1596 
1597     iecho_len = sizeof(struct icmp_echo_hdr) + data_len;
1598     sfd = lwip_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP);
1599     if (sfd < 0) {
1600         perror("Ping socket");
1601         return -1;
1602     }
1603     pbuf_resp = pbuf_alloc(PBUF_RAW, IP_HLEN + sizeof(struct icmp_echo_hdr), PBUF_RAM);
1604     if (pbuf_resp == NULL) {
1605         PRINTK("Ping: pbuf_resp malloc failed\n");
1606         ret = -1;
1607         goto FAILURE;
1608     }
1609     iecho = (struct icmp_echo_hdr *)mem_malloc(iecho_len);
1610     if (iecho == NULL) {
1611         PRINTK("Ping: echo request malloc failed\n");
1612         ret = -1;
1613         goto FAILURE;
1614     }
1615 
1616     to.sin_family = AF_INET;
1617     to.sin_addr.s_addr = destip; /* already in network order */
1618     to.sin_port = 0;
1619 
1620     if (data_len > PING_ZERO_DATA_LEN) {
1621         (void)memset_s(iecho, sizeof(struct icmp_echo_hdr) + PING_ZERO_DATA_LEN,
1622                        0, sizeof(struct icmp_echo_hdr) + PING_ZERO_DATA_LEN);
1623         data_buf = (char *)iecho + sizeof(struct icmp_echo_hdr) + PING_ZERO_DATA_LEN;
1624         for (i = 0; i < data_len - PING_ZERO_DATA_LEN; i++) {
1625             *(data_buf + i) = i + 0x10;
1626         }
1627     } else {
1628         (void)memset_s(iecho, sizeof(struct icmp_echo_hdr) + data_len, 0, sizeof(struct icmp_echo_hdr) + data_len);
1629     }
1630     iecho->id = htons((u16_t)LOS_CurTaskIDGet());
1631     ICMPH_TYPE_SET(iecho, (u8_t)ICMP_ECHO);
1632     forever = (cnt ? 0 : 1);
1633     i = 0;
1634     while (!ping_kill && (forever || (i < cnt))) {
1635         iecho->seqno = htons((u16_t)i);
1636         iecho->chksum = 0;
1637         iecho->chksum = inet_chksum((void *)iecho, iecho_len);
1638 
1639         ret = sendto(sfd, iecho, iecho_len, 0, (struct sockaddr *)&to, (socklen_t)sizeof(to));
1640         if (ret < 0) {
1641             perror("Ping: sending ICMP echo request failed\n");
1642             goto FAILURE;
1643         }
1644 
1645         /* capture the start time to calculate RTT */
1646         (void)clock_gettime(CLOCK_MONOTONIC_RAW, &start);
1647 
1648         /* poll for ICMP echo response msg */
1649         pfd.fd = sfd;
1650 
1651         do {
1652             pfd.events = POLLIN;
1653             pfd.revents = 0;
1654             timeout_flag = false;
1655             ret = poll(&pfd, 1, LWIP_SHELL_CMD_PING_TIMEOUT);
1656             if (ret < 0) {
1657                 perror("Ping: poll\n");
1658                 goto FAILURE;
1659             } else if (ret == 0) {
1660                 /* first type timeout event */
1661                 timeout_flag = true;
1662                 break;
1663             }
1664 
1665             ret = recv(sfd, pbuf_resp->payload, pbuf_resp->len, MSG_DONTWAIT);
1666             if (ret < 0) {
1667                 perror("Ping: recv echo reply failed\n");
1668                 goto FAILURE;
1669             }
1670 
1671             /* Accessing ip header and icmp header */
1672             iphdr_resp = pbuf_resp->payload;
1673 
1674             ip_hlen = (IPH_HL(iphdr_resp) << 2);
1675             if (pbuf_header(pbuf_resp, -ip_hlen)) {
1676                 /* this failure will never happen, but failure handle is written just to be in safe side */
1677                 PRINTK("Ping : memory management failure\n");
1678                 goto FAILURE;
1679             }
1680             iecho_resp = (struct icmp_echo_hdr *)pbuf_resp->payload;
1681             /* Reverting back pbuf to its original state */
1682             if (pbuf_header(pbuf_resp, ip_hlen)) {
1683                 /* this failure will never happen, but failure handle is written just to be in safe side */
1684                 PRINTK("ping : memory management failure\n");
1685                 goto FAILURE;
1686             }
1687 
1688             if ((iphdr_resp->src.addr != to.sin_addr.s_addr) ||
1689                 ((ICMPH_TYPE(iecho_resp) == ICMP_ECHO) && (iphdr_resp->src.addr == to.sin_addr.s_addr))) {
1690                 /* second type timeout event */
1691                 (void)clock_gettime(CLOCK_MONOTONIC_RAW, &end);
1692                 timout_ms = ((end.tv_sec - start.tv_sec) * 1000 + (end.tv_nsec - start.tv_nsec) / 1000000);
1693                 timout_ms = LWIP_SHELL_CMD_PING_TIMEOUT - timout_ms;
1694             } else {
1695                 timout_ms = 0;
1696                 break;
1697             }
1698         } while (timout_ms >= 0);
1699 
1700         /* all timeout events are true timeout */
1701         if ((timout_ms < 0) || (timeout_flag == true)) {
1702             failed_cnt++;
1703             i++;
1704             PRINTK("\nPing: destination unreachable ...");
1705             continue;
1706         }
1707         /* capture the end time to calculate round trip time */
1708         (void)clock_gettime(CLOCK_MONOTONIC_RAW, &end);
1709         rtt = ((end.tv_sec - start.tv_sec) * 1000 + (end.tv_nsec - start.tv_nsec) / 1000000);
1710 
1711         if (iphdr_resp->src.addr == to.sin_addr.s_addr) {
1712             switch (ICMPH_TYPE(iecho_resp)) {
1713                 case ICMP_ER:
1714                     PRINTK("\n[%u]Reply from %s: ", i, inet_ntop(AF_INET, &to.sin_addr, buf, sizeof(buf)));
1715                     if (rtt > 0) {
1716                         PRINTK("time=%ims ", rtt);
1717                     } else {
1718                         PRINTK("time<1ms ");
1719                     }
1720                     PRINTK("TTL=%u", iphdr_resp->_ttl);
1721 
1722                     /* delay 1s for every successful ping */
1723                     intrvl = interval;
1724                     do {
1725                         if (intrvl < 1000) {
1726                             sys_msleep(intrvl);
1727                             break;
1728                         }
1729                         intrvl -= 1000;
1730                         sys_msleep(1000);
1731                         if (ping_kill == 1)
1732                             break;
1733                     } while (intrvl > 0);
1734                     succ_cnt++;
1735                     break;
1736                 case ICMP_DUR:
1737                     PRINTK("\nPing: destination host unreachable ...");
1738                     break;
1739                 case ICMP_SQ:
1740                     PRINTK("\nPing: source quench ...");
1741                     break;
1742                 case ICMP_RD:
1743                     PRINTK("\nPing: redirect ...");
1744                     break;
1745                 case ICMP_TE:
1746                     PRINTK("\nPing: time exceeded ...");
1747                     break;
1748                 case ICMP_PP:
1749                     PRINTK("\nPing: parameter problem ...");
1750                     break;
1751                 default :
1752                     PRINTK("\nPing: unknown error ...");
1753                     break;
1754             }
1755             i++;
1756         }
1757     }
1758 
1759     PRINTK("\n--- %s ping statistics ---\n", inet_ntop(AF_INET, &to.sin_addr, buf, sizeof(buf)));
1760     PRINTK("%u packets transmitted, %u received, %u loss\n", i, succ_cnt, failed_cnt);
1761 
1762 FAILURE:
1763     ping_kill = 0;
1764     (void)lwip_close(sfd);
1765     if (pbuf_resp != NULL) {
1766         (void)pbuf_free(pbuf_resp);
1767     }
1768     if (iecho != NULL) {
1769         mem_free(iecho);
1770     }
1771     return ret;
1772 }
1773 
ping_cmd(unsigned int p0,unsigned int p1,unsigned int p2,unsigned int p3)1774 static void ping_cmd(unsigned int p0, unsigned int p1, unsigned int p2, unsigned int p3)
1775 {
1776     u32_t destip = p0;
1777     u32_t count = p1;
1778     u32_t interval = p2;
1779     u32_t data_len = p3;
1780     int ret;
1781 
1782     ret = osPingFunc(destip, count, interval, data_len);
1783     if (ret < 0) {
1784         PRINTK("Ping cmd failed due to some errors\n");
1785     }
1786 
1787     ping_taskid = -1;
1788 }
1789 
osShellPing(int argc,const char ** argv)1790 u32_t osShellPing(int argc, const char **argv)
1791 {
1792     int ret;
1793     u32_t i = 0;
1794     u32_t count = 0;
1795     int count_set = 0;
1796     u32_t interval = 1000; /* default ping interval */
1797     u32_t data_len = 48; /* default data length */
1798     ip4_addr_t dst_ipaddr;
1799     TSK_INIT_PARAM_S stPingTask;
1800 
1801     if (!tcpip_init_finish) {
1802         PRINTK("Ping: tcpip_init have not been called\n");
1803         return LOS_NOK;
1804     }
1805 
1806     if ((argc < 1) || (argv == NULL)) {
1807         PRINTK("Ping: require dest ipaddr at least\n");
1808         goto ping_error;
1809     }
1810 
1811     /* could add more param support */
1812     while (argc > 0) {
1813         if (strcmp("-n", argv[i]) == 0 && (argc > 1)) {
1814             ret = atoi(argv[i + 1]);
1815             if (ret <= 0) {
1816                 PRINTK("Ping count should be greater than 0 \n");
1817                 goto ping_error;
1818             }
1819             count = ret;
1820             count_set = 1;
1821             i += 2;
1822             argc -= 2;
1823         } else if (strcmp("-t", argv[i]) == 0) {
1824             count = 0; /* ping forerver */
1825             count_set = 1;
1826             i++;
1827             argc--;
1828         } else if (strcmp("-w", argv[i]) == 0 && (argc > 1)) {
1829             ret = atoi(argv[i + 1]);
1830             if (ret <= 0) {
1831                 PRINTK("Ping interval should be greater than 0 \n");
1832                 goto ping_error;
1833             }
1834 
1835             interval = ret;
1836             i += 2;
1837             argc -= 2;
1838         } else if (strcmp("-l", argv[i]) == 0 && (argc > 1)) {
1839             ret = atoi(argv[i + 1]);
1840             if (ret < 0 || ret > (int)(LWIP_MAX_UDP_RAW_SEND_SIZE - sizeof(struct icmp_echo_hdr))) {
1841                 PRINTK("Ping data length error, should be in range of [0, %d] \n",
1842                        LWIP_MAX_UDP_RAW_SEND_SIZE - sizeof(struct icmp_echo_hdr));
1843                 goto ping_error;
1844             }
1845             data_len = ret;
1846             i += 2;
1847             argc -= 2;
1848         } else if (strcmp("-k", argv[i]) == 0) {
1849             if (ping_taskid > 0) {
1850                 ping_kill = 1; /* stop the current ping task */
1851                 return LOS_OK;
1852             } else {
1853                 PRINTK("No ping task running...\n");
1854                 return LOS_NOK;
1855             }
1856         } else {
1857             if (argc == 1) {
1858                 break;
1859             } else {
1860                 PRINTK("Invalid Ping param\n");
1861                 goto ping_error;
1862             }
1863         }
1864     }
1865 
1866     if (!count_set) {
1867         count = LWIP_SHELL_CMD_PING_RETRY_TIMES;
1868     }
1869 
1870     /* initialize dst IP address */
1871     if (argc <= 0) {
1872         goto ping_error;
1873     }
1874 #if LWIP_DNS
1875     dst_ipaddr.addr = get_hostip(argv[i]);
1876 #else /* LWIP_DNS */
1877     dst_ipaddr.addr = inet_addr(argv[i]);
1878 #endif /* LWIP_DNS */
1879 
1880     if (dst_ipaddr.addr == IPADDR_NONE || dst_ipaddr.addr == IPADDR_ANY) {
1881         PRINTK("Invalid dest ipaddr: NONE or ANY\n");
1882         return LOS_NOK;
1883     }
1884 
1885     /* start one task if ping forever or ping count greater than 60 */
1886     if (count == 0 || count > LWIP_SHELL_CMD_PING_RETRY_TIMES) {
1887         if (ping_taskid > 0) {
1888             PRINTK("Ping task already running and only support one now\n");
1889             return LOS_NOK;
1890         }
1891         stPingTask.pfnTaskEntry = (TSK_ENTRY_FUNC)ping_cmd;
1892         stPingTask.uwStackSize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE;
1893         stPingTask.pcName = "ping_task";
1894         stPingTask.usTaskPrio = 8; /* higher than shell */
1895         stPingTask.uwResved = LOS_TASK_STATUS_DETACHED;
1896         stPingTask.auwArgs[0] = dst_ipaddr.addr; /* network order */
1897         stPingTask.auwArgs[1] = count;
1898         stPingTask.auwArgs[2] = interval;
1899         stPingTask.auwArgs[3] = data_len;
1900         ret = LOS_TaskCreate((UINT32 *)(&ping_taskid), &stPingTask);
1901         if (ret != LOS_OK) {
1902             PRINTK("ping_task create failed 0x%08x.\n", ret);
1903             count = LWIP_SHELL_CMD_PING_RETRY_TIMES;
1904         } else {
1905             return LOS_OK;
1906         }
1907     }
1908 
1909     /* two cases:
1910      1, ping cout less than LWIP_SHELL_CMD_PING_RETRY_TIMES;
1911      2, ping task create failed;
1912     */
1913     if (osPingFunc(dst_ipaddr.addr, count, interval, data_len) < 0) {
1914         PRINTK("Ping cmd failed due some errors\n");
1915     }
1916 
1917     return LOS_OK;
1918 ping_error:
1919     lwip_ping_usage();
1920     return LOS_NOK;
1921 }
1922 #ifdef LOSCFG_SHELL
1923 SHELLCMD_ENTRY(ping_shellcmd, CMD_TYPE_EX, "ping", XARGS, (CmdCallBackFunc)osShellPing);
1924 #endif /* LOSCFG_SHELL */
1925 
1926 #else /* LWIP_EXT_POLL_SUPPORT*/
1927 
osShellPing(int argc,const char ** argv)1928 u32_t osShellPing(int argc, const char **argv)
1929 {
1930     int sfd;
1931     struct sockaddr_in to;
1932     struct icmp_echo_hdr iecho;
1933     struct pbuf *pbuf_resp = NULL;
1934     struct icmp_echo_hdr *iecho_resp = NULL;
1935     struct ip_hdr *iphdr_resp = NULL;
1936     s16_t ip_hlen;
1937     ip_addr_t dst_ipaddr;
1938     fd_set fdReadSet;
1939     struct timeval stTimeVal;
1940     struct timespec start, end;
1941     int ret;
1942     s32_t i;
1943     long rtt;
1944     s32_t pingcount;
1945     char buf[50];
1946 
1947     if (!tcpip_init_finish) {
1948         PRINTK("ping: tcpip_init have not been called\n");
1949         return LOS_NOK;
1950     }
1951 
1952     if ((argc < 1) || (argv == NULL)) {
1953         PRINTK("ping : invalid arguments, ping command receives ip as command line argument \n");
1954         return LOS_NOK;
1955     }
1956 
1957     if (argc == 2) {
1958         pingcount = atoi(argv[1]);
1959         if (pingcount < 1)
1960             pingcount = LWIP_SHELL_CMD_PING_RETRY_TIMES;
1961     } else {
1962         pingcount = LWIP_SHELL_CMD_PING_RETRY_TIMES;
1963     }
1964     PRINTK("ping %u packets start.\n", pingcount);
1965 
1966     /* initialize dst IP address */
1967 #if LWIP_DNS
1968     ip_2_ip4(&dst_ipaddr)->addr = get_hostip(argv[0]);
1969 #else /* LWIP_DNS */
1970     ip_2_ip4(&dst_ipaddr)->addr = inet_addr(argv[0]);
1971 #endif /* LWIP_DNS */
1972 
1973     to.sin_family = AF_INET;
1974     to.sin_addr.s_addr = ip_2_ip4(&dst_ipaddr)->addr;
1975     to.sin_port = 0;
1976 
1977     if (to.sin_addr.s_addr == IPADDR_NONE || to.sin_addr.s_addr == IPADDR_ANY) {
1978         PRINTK("ping : invalid ip address : NONE or ANY\n");
1979         return LOS_NOK;
1980     }
1981 
1982     sfd = lwip_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP);
1983     if (sfd == -1) {
1984         PRINTK("ping : failed, socket creation failed\n");
1985         return LOS_NOK;
1986     }
1987 
1988     pbuf_resp = pbuf_alloc(PBUF_RAW, IP_HLEN + sizeof(struct icmp_echo_hdr), PBUF_RAM);
1989     if (pbuf_resp == NULL) {
1990         PRINTK("ping : memory allocation failed\n");
1991         goto FAILURE;
1992     }
1993 
1994     for (i = 0; i < pingcount; i++) {
1995         (void)memset_s(&iecho, sizeof(iecho), 0, sizeof(iecho));
1996         ICMPH_TYPE_SET(&iecho, (u8_t)ICMP_ECHO);
1997         iecho.chksum = inet_chksum(&iecho, sizeof(struct icmp_echo_hdr));
1998 
1999         ret = lwip_sendto(sfd, &iecho, sizeof(struct icmp_echo_hdr), 0, (struct sockaddr *)&to, (socklen_t)sizeof(to));
2000         if (ret == -1) {
2001             PRINTK("ping : sending ICMP echo msg failed\n");
2002             goto FAILURE;
2003         }
2004 
2005         /* capture the start time to calculate round trip time */
2006         (void)clock_gettime(CLOCK_MONOTONIC_RAW, &start);
2007         /* Wait in select for ICMP response msg */
2008         FD_ZERO(&fdReadSet);
2009         FD_SET(sfd, &fdReadSet);
2010         stTimeVal.tv_sec = LWIP_SHELL_CMD_PING_TIMEOUT / 1000;
2011         stTimeVal.tv_usec = 0;
2012 
2013 DO_SELECT:
2014         ret = select(sfd + 1, &fdReadSet, 0, 0, &stTimeVal);
2015         if (ret < 0) {
2016             PRINTK("ping : select failure\n");
2017             goto FAILURE;
2018         } else if (ret == 0) {
2019             PRINTK("Request timed out.\n");
2020             continue;
2021         }
2022 
2023         /* capture the end time to calculate round trip time */
2024         (void)clock_gettime(CLOCK_MONOTONIC_RAW, &end);
2025         rtt = ((end.tv_sec - start.tv_sec) * 1000 + (end.tv_nsec - start.tv_nsec) / 1000000);
2026 
2027         ret = lwip_recv(sfd, pbuf_resp->payload, pbuf_resp->len, 0);
2028         if (ret == -1) {
2029             PRINTK("ping : receiving ICMP echo response msg failed\n");
2030             goto FAILURE;
2031         }
2032 
2033         /* Accessing ip header and icmp header */
2034         iphdr_resp = (struct ip_hdr *)(pbuf_resp->payload);
2035         ip_hlen = (s16_t)(IPH_HL(iphdr_resp) * 4);
2036         if (pbuf_header(pbuf_resp, (s16_t)(-ip_hlen))) {
2037             /* this failure will never happen, but failure handle is written just to be in safe side */
2038             PRINTK("ping : memory management failure\n");
2039             goto FAILURE;
2040         }
2041         iecho_resp = (struct icmp_echo_hdr *)pbuf_resp->payload;
2042 
2043         /* Reverting back pbuf to its original state */
2044         if (pbuf_header(pbuf_resp, ip_hlen)) {
2045             /* this failure will never happen, but failure handle is written just to be in safe side */
2046             PRINTK("ping : memory management failure\n");
2047             goto FAILURE;
2048         }
2049 
2050         if (iphdr_resp->src.addr == to.sin_addr.s_addr) {
2051             if (ICMPH_TYPE(iecho_resp) == ICMP_ER) {
2052                 PRINTK("[%u]Reply from %s: time=%ims TTL=%u\n", i,
2053                        inet_ntoa_r(to.sin_addr.s_addr, buf, sizeof(buf)), rtt, iphdr_resp->_ttl);
2054             } else if (ICMPH_TYPE(iecho_resp) == ICMP_ECHO) {
2055                 /* If ping self, stack will receive a ICMP_ECHO request message flowing a ICMP_ER reply message,
2056                     and we need reply only, do select again */
2057                 goto DO_SELECT;
2058             }
2059         }
2060     }
2061 
2062     (void)lwip_close(sfd);
2063     (void)pbuf_free(pbuf_resp);
2064     return LOS_OK;
2065 
2066 FAILURE:
2067     (void)lwip_close(sfd);
2068     if (pbuf_resp != NULL) {
2069         (void)pbuf_free(pbuf_resp);
2070     }
2071 
2072     return LOS_NOK;
2073 }
2074 
2075 #ifdef LOSCFG_SHELL
2076 SHELLCMD_ENTRY(ping_shellcmd, CMD_TYPE_EX, "ping", XARGS, (CmdCallBackFunc)osShellPing);
2077 #endif /* LOSCFG_SHELL */
2078 
2079 #endif /* LWIP_EXT_POLL_SUPPORT*/
2080 
2081 #if LWIP_IPV6
osShellPing6(int argc,const char ** argv)2082 u32_t osShellPing6(int argc, const char **argv)
2083 {
2084     u16_t icmpv6_id;
2085     u16_t icmpv6_seq;
2086     u32_t nsent;
2087     u32_t nrecieve;
2088     u32_t last_received;
2089     struct timespec start, end, start_in_reply;
2090     struct timespec first, last;
2091     long rtt;
2092     int ret;
2093     fd_set fdReadSet;
2094     void *param = NULL;
2095     ping6_args_t ping6_params;
2096     ping6_stats_t ping6_stats;
2097     struct sockaddr_in6 to;
2098     struct icmp6_echo_hdr *iecho_resp = NULL;
2099     struct icmp6_echo_hdr *iecho = NULL;
2100     struct timeval stTimeVal;
2101     struct timeval deltaTimeVal;
2102     struct pbuf *pbuf_resp = NULL;
2103     struct pbuf *pbuf_req = NULL;
2104     int sfd = -1;
2105     u8_t type;
2106     u8_t select_on_socket = 0;
2107     char buf[INET6_ADDRSTRLEN];
2108 
2109     if (!tcpip_init_finish) {
2110         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
2111         ret = -1;
2112         goto exit;
2113     }
2114 
2115     if ((argc < 1) || (argc > LWIP_MAX_PING6_ARG_COUNT) || (argv == NULL)) {
2116         goto usage;
2117     }
2118 
2119     ret = parse_args_ping6(argc, argv, &ping6_params);
2120     if (ret == -1) {
2121         goto exit;
2122     }
2123 
2124     if (ping6_params.args_found & LWIP_PING6_SOURCE_ADDRESS_ARG) {
2125         type = LWIP_PING6_SOURCE_ADDRESS_ARG;
2126         param = (void *)(&ping6_params.src_addr);
2127     } else if (ping6_params.args_found & LWIP_PING6_INTERFACE_ARG) {
2128         type = LWIP_PING6_INTERFACE_ARG;
2129         param = (void *)(argv[ping6_params.interface_index]);
2130     } else {
2131         type = LWIP_PING6_DEFAULT_SOCKET;
2132         param = NULL;
2133     }
2134 
2135     /* Create a socket for sending and receiving pings with appropriate bindings */
2136     sfd = create_ping6_socket(type, param);
2137     if (sfd == -1) {
2138         ret = -1;
2139         goto exit;
2140     }
2141 
2142     pbuf_req = pbuf_alloc(PBUF_RAW, LWIP_PING6_STANDARD_PKT_SIZE, PBUF_RAM);
2143     pbuf_resp = pbuf_alloc(PBUF_RAW, LWIP_PING6_STANDARD_PKT_SIZE, PBUF_RAM);
2144     if ((pbuf_resp == NULL) || (pbuf_req == NULL)) {
2145         PRINTK("ping6 : Memory Allocation Failed\n");
2146         ret = -1;
2147         goto exit;
2148     }
2149 
2150     to.sin6_family = AF_INET6;
2151     inet6_addr_from_ip6addr(&to.sin6_addr, &(ping6_params.dst_addr));
2152     to.sin6_port = htons(IPPROTO_ICMPV6);
2153 
2154 #if LWIP_DNS
2155     if (lwip_strnicmp(inet_ntop(AF_INET6, &to.sin6_addr, buf, sizeof(buf)), argv[ping6_params.host_index],
2156                       sizeof(to.sin6_addr))) {
2157         /* If There Was A DNS Resolution */
2158         PRINTK("PING %s (%s) with %d bytes of data.\n",
2159                argv[ping6_params.host_index], buf, LWIP_PING6_STANDARD_PKT_SIZE);
2160     } else {
2161         PRINTK("PING %s with %d bytes of data.\n", buf, LWIP_PING6_STANDARD_PKT_SIZE);
2162     }
2163 #else
2164     PRINTK("PING %s with %d bytes of data\n", inet_ntop(AF_INET6, &to.sin6_addr, buf, sizeof(buf)), LWIP_PING6_STANDARD_PKT_SIZE);
2165 #endif /* LWIP_DNS */
2166 
2167     nrecieve = 0;
2168     ping6_stats.flag = 0;
2169     ping6_stats.avg_rtt = 0;
2170     ping6_stats.max_rtt = 0;
2171     ping6_stats.min_rtt = 0;
2172     last_received = LWIP_PING6_STARTING_SEQ_NUM + LWIP_PING6_OUT_OF_ORDER_MAGNITUDE + 1;
2173     icmpv6_id = (u16_t)LWIP_RAND();
2174     icmpv6_seq = LWIP_PING6_STARTING_SEQ_NUM;
2175     /* Setting the start time of the entire ping task for statistics */
2176     (void)clock_gettime(CLOCK_MONOTONIC_RAW, &first);
2177 
2178     nsent = 0;
2179 
2180     for (nsent = 0; nsent < ping6_params.pingcount; nsent++) {
2181         /* capture the start tick to calculate rtt */
2182         (void)clock_gettime(CLOCK_MONOTONIC_RAW, &start);
2183         /* Initialize Memory To Prevent Uninitialized Memory Read Write Issues */
2184         if (memset_s(pbuf_req->payload, pbuf_req->len, (int)(start.tv_nsec), pbuf_req->len) != 0) {
2185             goto exit;
2186         }
2187 
2188         iecho = (struct icmp6_echo_hdr *)pbuf_req->payload;
2189         iecho->type = ICMP6_TYPE_EREQ;
2190         iecho->id = icmpv6_id;
2191         icmpv6_seq++;
2192         iecho->seqno = icmpv6_seq;
2193         iecho->code = 0;
2194 
2195         /* Embedding the start_tick as data into the icmp_payload */
2196         (void)pbuf_header(pbuf_req, (s16_t)(-(s16_t)(sizeof(struct icmp6_echo_hdr))));
2197         if (memcpy_s(pbuf_req->payload, pbuf_req->len, (void *)&start, sizeof(start)) != 0) {
2198             goto exit;
2199         }
2200         (void)pbuf_header(pbuf_req, (s16_t)((s16_t)(sizeof(struct icmp6_echo_hdr))));
2201 
2202         ret = lwip_sendto(sfd, iecho, pbuf_req->len, 0, (struct sockaddr *)&to, (socklen_t)sizeof(to));
2203         if (ret == -1) {
2204             PRINTK("ping6 : Sending ICMP Echo message failed\n");
2205             goto exit;
2206         }
2207 
2208         /* Wait in select for ICMP response msg */
2209         FD_ZERO(&fdReadSet);
2210         FD_SET(sfd, &fdReadSet);
2211         stTimeVal.tv_sec = LWIP_MSECS_TO_SECS(LWIP_SHELL_CMD_PING_TIMEOUT);
2212         stTimeVal.tv_usec = 0;
2213         select_on_socket = 1;
2214 
2215         while (select_on_socket) {
2216             select_on_socket = 0;
2217             ret = select(sfd + 1, &fdReadSet, 0, 0, &stTimeVal);
2218             if (ret < 0) {
2219                 PRINTK("ping6 : select failure\n");
2220                 goto exit;
2221             } else if (ret == 0) {
2222                 (void)clock_gettime(CLOCK_MONOTONIC_RAW, &end);
2223                 PRINTK("Request timed out\n");
2224                 continue;
2225             }
2226 
2227             /* capture the end time to calculate round trip time */
2228             (void)clock_gettime(CLOCK_MONOTONIC_RAW, &end);
2229 
2230             ret = lwip_recv(sfd, pbuf_resp->payload, pbuf_resp->len, 0);
2231             if (ret == -1) {
2232                 PRINTK("ping6 : receiving ICMP echo response msg failed\n");
2233                 goto exit;
2234             }
2235 
2236             if ((u32_t)ret < sizeof(struct icmp6_echo_hdr *)) {
2237                 /* Drop the packet if its too short [Doesnot contain even the header !!] */
2238                 PRINTK("ping6 : received ICMP echo response too short\n");
2239                 goto REDUCE_SELECT_TIME;
2240             }
2241 
2242             /* Acceping the ICMPv6 payload. */
2243             /* Here, pbuf_resp->payload wont contain IPv6 Header since its an AF_INET6 RAW Socket */
2244             iecho_resp = (struct icmp6_echo_hdr *)pbuf_resp->payload;
2245 
2246             if (iecho_resp->id == icmpv6_id) {
2247                 if (iecho_resp->type == ICMP6_TYPE_EREP) {
2248                     if (ret < LWIP_PING6_STANDARD_PKT_SIZE) {
2249                         /* Drop the packet if its too short */
2250                         PRINTK("ping6 : received ICMP echo response too short\n");
2251                         goto REDUCE_SELECT_TIME;
2252                     }
2253                     /* Accept and process only those delayed EREP only if its sequence num is within out-of-order magnitude */
2254                     if (nsent && iecho_resp->seqno != icmpv6_seq &&
2255                         (iecho_resp->seqno<(u16_t)(last_received - LWIP_PING6_OUT_OF_ORDER_MAGNITUDE) ||
2256                                            iecho_resp->seqno>(u16_t)(
2257                             last_received + LWIP_PING6_OUT_OF_ORDER_MAGNITUDE))) {
2258                         /* Otherwise drop it and wait for more packets */
2259                         goto REDUCE_SELECT_TIME;
2260                     }
2261                     ++nrecieve;
2262                     last_received = iecho_resp->seqno;
2263                     /* Retrieving the start_tick from the packet which was embedded when the request was transmitted */
2264                     (void)pbuf_header(pbuf_resp, (s16_t)(-(s16_t)(sizeof(struct icmp6_echo_hdr))));
2265                     if (memcpy_s((void *)&start_in_reply, sizeof(start_in_reply),
2266                                  pbuf_resp->payload, sizeof(start_in_reply)) != EOK) {
2267                         goto REDUCE_SELECT_TIME;
2268                     }
2269                     (void)pbuf_header(pbuf_resp, (s16_t)((s16_t)(sizeof(struct icmp6_echo_hdr))));
2270 
2271                     rtt = ((end.tv_sec - start.tv_sec) * 1000 + (end.tv_nsec - start.tv_nsec) / 1000000);
2272 
2273                     PRINTK("%d bytes from %s : icmp_seq=%d time", ret,
2274                            inet_ntop(AF_INET6, &to.sin6_addr, buf, sizeof(buf)),
2275                            ((iecho_resp->seqno) - LWIP_PING6_STARTING_SEQ_NUM));
2276                     if (rtt < 1) {
2277                         PRINTK("<1 ms\n");
2278                     } else {
2279                         PRINTK("=%i ms\n", rtt);
2280                     }
2281 
2282                     update_ping6_stats(&ping6_stats, (u32_t)(rtt), nrecieve);
2283 
2284                     /* Checking if its a delayed packet */
2285                     if ((iecho_resp->seqno != icmpv6_seq) && (nsent < ping6_params.pingcount)) {
2286                         /* Incase of delayed packet wait on socket for other response before sending a new PING */
2287                         /* We have to reduce the timeout value now when selecting on socket */
2288                         goto REDUCE_SELECT_TIME;
2289                     }
2290                 } else {
2291                     PRINTK("[%u]ping6 : %s\n", nsent, convert_icmpv6_err_to_string(iecho_resp->type));
2292                 }
2293             } else {
2294                 /* If incoming packet does not matches with icmp_id, it should be ignored  */
2295                 /* Reduce the timeout for select on socket */
2296 REDUCE_SELECT_TIME:
2297                 deltaTimeVal.tv_sec = (long)(end.tv_sec - start.tv_sec);
2298                 deltaTimeVal.tv_usec = (long)((end.tv_nsec - start.tv_nsec) / 1000);
2299                 /* Subtract deltaTime from stTime and store in stTime */
2300                 /* This will reduce the select time on the socket */
2301                 timersub(&stTimeVal, &deltaTimeVal, &stTimeVal);
2302                 select_on_socket = 1;
2303             }
2304         }
2305     }
2306 
2307     ret = ERR_OK;
2308 
2309     (void)clock_gettime(CLOCK_MONOTONIC_RAW, &last);
2310     /* Display ping stats */
2311     PRINTK("--- %s ping statistics ---\n", argv[ping6_params.host_index]);
2312     PRINTK("%d packets transmitted, %d received, %.2f%% packet loss, time %dms\n",
2313            nsent, nrecieve, (float)(((float)(nsent - nrecieve)) * ((float)(100)) / ((float)(nsent))),
2314            ((last.tv_sec - first.tv_sec) * 1000 + (last.tv_nsec - first.tv_nsec) / 1000000));
2315     if (nrecieve) {
2316         /* Display rtt stats only if atleast one packet is received */
2317         PRINTK("rtt min/avg/max = %u/%.2f/%u ms\n", ping6_stats.min_rtt, ping6_stats.avg_rtt, ping6_stats.max_rtt);
2318     }
2319 
2320 exit:
2321     if (sfd != -1) {
2322         (void)lwip_close(sfd);
2323     }
2324 
2325     if (pbuf_resp != NULL) {
2326         (void)pbuf_free(pbuf_resp);
2327     }
2328 
2329     if (pbuf_req != NULL) {
2330         (void)pbuf_free(pbuf_req);
2331     }
2332     return (u32_t)((ret == (int)ERR_OK) ? LOS_OK : LOS_NOK);
2333 
2334 usage:
2335     PRINTK("Usage:\n");
2336     PRINTK("\tping6 [-c count] [-I interface/sourceAddress] destination\n");
2337     return LOS_NOK;
2338 }
2339 
create_ping6_socket(u8_t type,const void * param)2340 LWIP_STATIC int create_ping6_socket(u8_t type, const void *param)
2341 {
2342     int sfd;
2343     int ret;
2344     struct sockaddr_in6 stHostAddr6;
2345     struct icmp6_filter icmp6_sock_filter;
2346 
2347     sfd = lwip_socket(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
2348     if (sfd == -1) {
2349         PRINTK("ping6 : Failed, socket creation failed\n");
2350         return -1;
2351     }
2352 
2353     if (param != NULL) {
2354         if (type == LWIP_PING6_SOURCE_ADDRESS_ARG) {
2355             /* Binding socket to the provided source address */
2356             (void)memset_s(&stHostAddr6, sizeof(stHostAddr6), 0, sizeof(stHostAddr6));
2357             stHostAddr6.sin6_family = AF_INET6;
2358             inet6_addr_from_ip6addr(&stHostAddr6.sin6_addr, (ip6_addr_t *)param);
2359             stHostAddr6.sin6_port = htons(IPPROTO_ICMPV6);
2360             stHostAddr6.sin6_scope_id = 0;
2361 
2362             ret = lwip_bind(sfd, (struct sockaddr *)&stHostAddr6, sizeof(stHostAddr6));
2363             if (ret == -1) {
2364                 (void)lwip_close(sfd);
2365                 PRINTK("ping6 : bind icmp socket: cannot assign requested address\n");
2366                 return ret;
2367             }
2368         } else if (type == LWIP_PING6_INTERFACE_ARG) {
2369             /* Binding socket to the provided netif */
2370             ret = lwip_setsockopt(sfd, SOL_SOCKET, SO_BINDTODEVICE, (char *)(param), strlen((char *)(param)));
2371             if (ret == -1) {
2372                 (void)lwip_close(sfd);
2373                 PRINTK("ping6: unknownn iface %s\n", (char *)(param));
2374                 return ret;
2375             }
2376         }
2377     }
2378 
2379     /* Setting socket filter since we are interested only in ECHO REPLY and ERROR messages */
2380     ICMP6_FILTER_SETBLOCKALL(&icmp6_sock_filter);
2381     ICMP6_FILTER_SETPASS(ICMP6_TYPE_EREP, &icmp6_sock_filter);
2382     ICMP6_FILTER_SETPASS(ICMP6_TYPE_DUR, &icmp6_sock_filter);
2383     ICMP6_FILTER_SETPASS(ICMP6_TYPE_PTB, &icmp6_sock_filter);
2384     ICMP6_FILTER_SETPASS(ICMP6_TYPE_TE, &icmp6_sock_filter);
2385 
2386     ret = lwip_setsockopt(sfd, IPPROTO_ICMPV6, ICMP6_FILTER, &icmp6_sock_filter, sizeof(struct icmp6_filter));
2387     if (ret == -1) {
2388         (void)lwip_close(sfd);
2389         PRINTK("ping6 : setsockopt: Invalid Argument\n");
2390         return -1;
2391     }
2392 
2393     return sfd;
2394 }
2395 
2396 /*
2397  * Function to parse the command line args for ping6 shell utility
2398  * @return:
2399  *   Success: ERR_OK
2400  *   Failure: -1
2401  */
parse_args_ping6(int argc,const char ** argv,ping6_args_t * ping6_params)2402 LWIP_STATIC int parse_args_ping6(int argc, const char **argv, ping6_args_t *ping6_params)
2403 {
2404     int pingcount;
2405     int ret = -1;
2406 #if LWIP_DNS
2407     struct addrinfo *res = NULL;
2408     struct addrinfo hints_structure;
2409 #endif
2410     u8_t i = 0;
2411 
2412     IP6_ADDR(&(ping6_params->dst_addr), 0, 0, 0, 0);
2413     IP6_ADDR(&(ping6_params->src_addr), 0, 0, 0, 0);
2414 
2415     ping6_params->pingcount = LWIP_SHELL_CMD_PING_RETRY_TIMES;
2416     ping6_params->host_index = 0;
2417     ping6_params->args_found = 0;
2418 
2419     while (i < argc) {
2420         if (strcmp("-c", argv[i]) == 0) {
2421             /* Handle number of ICMP packets to transmit :: -c [number_of_packets] */
2422             if (ping6_params->args_found & LWIP_PING6_COUNT_ARG) {
2423                 PRINTK("ping6: -c option present multiple times \n");
2424                 ret = -1;
2425                 goto exit;
2426             }
2427 
2428             if (i + 2 > argc) {
2429                 PRINTK("ping6: ping count(-c) should require an argument \n");
2430                 ret = -1;
2431                 goto exit;
2432             }
2433 
2434             pingcount = atoi(argv[i + 1]);
2435             if (pingcount <= 0) {
2436                 PRINTK("ping6: bad number of packets to transmit \n");
2437                 ret = -1;
2438                 goto exit;
2439             }
2440 
2441             ping6_params->args_found |= LWIP_PING6_COUNT_ARG;
2442             ping6_params->pingcount = (u32_t)pingcount;
2443             i = (u8_t)(i + 2);
2444         } else if (strcmp("-I", argv[i]) == 0) {
2445             /* Handle interface ID / sourceAddress using which the ICMP Packets has to be transmitted :: -I [interface_id/source_address] */
2446 
2447             if ((ping6_params->args_found & LWIP_PING6_SOURCE_ADDRESS_ARG) ||
2448                 (ping6_params->args_found & LWIP_PING6_INTERFACE_ARG)) {
2449                 PRINTK("ping6: -I option present multiple times \n");
2450                 ret = -1;
2451                 goto exit;
2452             }
2453 
2454             if (i + 2 > argc) {
2455                 PRINTK("ping6: interface/source address(-I) should require an argument \n");
2456                 ret = -1;
2457                 goto exit;
2458             }
2459 
2460             /* Check whether the given argument to -I is source address */
2461             if (ip6addr_aton(argv[i + 1], &(ping6_params->src_addr))) {
2462                 ping6_params->args_found |= LWIP_PING6_SOURCE_ADDRESS_ARG;
2463                 i = (u8_t)(i + 2);
2464                 continue;
2465             }
2466 
2467             /* Storing the index where interface name is found */
2468             /* If this name is not valid, then it will fail later in setsockopt(BIND_TO_DEVICE) */
2469             ping6_params->interface_index = (u8_t)(i + 1);
2470             ping6_params->args_found |= LWIP_PING6_INTERFACE_ARG;
2471 
2472             i = (u8_t)(i + 2);
2473         } else {
2474             if (argv[i][0] == '-') {
2475                 /* Check whether its a bad option */
2476                 PRINTK("ping6: bad option %s\n", argv[i]);
2477                 ret = -1;
2478                 goto exit;
2479             } else if (ping6_params->args_found & LWIP_PING6_HOSTNAME_ARG) {
2480                 /* Check whether hostname is already found and there are extra arguments */
2481                 PRINTK("ping6: bad parameter %s\n", argv[i]);
2482                 ret = -1;
2483                 goto exit;
2484             }
2485 
2486 #if LWIP_DNS
2487             /* Resolve the given hostname */
2488             hints_structure.ai_family = AF_INET6;
2489             hints_structure.ai_flags = 0;
2490             ret = lwip_getaddrinfo(argv[i], NULL, &hints_structure, &res);
2491             if (ret != ERR_OK) {
2492                 PRINTK("ping6 : Host : %s can't be resolved to IPv6 address\n", argv[i]);
2493                 ret = -1;
2494                 goto exit;
2495             }
2496 
2497             inet6_addr_to_ip6addr(&(ping6_params->dst_addr),
2498                                   &(((const struct sockaddr_in6 *)(res->ai_addr))->sin6_addr));
2499 #else
2500             /* Convert the string representation to network form */
2501             if (!ip6addr_aton(argv[i], &(ping6_params->dst_addr))) {
2502                 PRINTK("ping6 : Invalid IPv6 Address : %s\n", argv[i]);
2503                 ret = -1;
2504                 goto exit;
2505             }
2506 #endif /* LWIP_DNS */
2507             if (ip6_addr_isany(&(ping6_params->dst_addr)) || ip6_addr_isnone(&(ping6_params->dst_addr))) {
2508 #if LWIP_DNS
2509                 PRINTK("ping6 : IPv6 address of host : %s (%s) is invalid\n", argv[i],
2510                        ip6addr_ntoa((const ip6_addr_t *)&(ping6_params->dst_addr)));
2511 #else
2512                 PRINTK("ping6 : Invalid IPv6 address : %s\n", argv[i]);
2513 #endif /* LWIP_DNS */
2514                 goto exit;
2515             }
2516             /* Setting host_index to the index of argv[] where the host/IP is present */
2517             ping6_params->args_found |= LWIP_PING6_HOSTNAME_ARG;
2518             ping6_params->host_index = (u8_t)(i);
2519             i = (u8_t)(i + 1);
2520         }
2521     }
2522 
2523     if (!(ping6_params->args_found & LWIP_PING6_HOSTNAME_ARG)) {
2524         /* Hostname/IPv6 address not found */
2525         PRINTK("ping6 : Hostname/IPv6 address to ping is not specified\n");
2526         ret = -1;
2527         goto exit;
2528     }
2529 
2530     if (ip6_addr_islinklocal(&(ping6_params->dst_addr)) &&
2531         !(ping6_params->args_found & (LWIP_PING6_INTERFACE_ARG | LWIP_PING6_SOURCE_ADDRESS_ARG))) {
2532         /* For link-local addresses, -I is mandatory */
2533         PRINTK("ping6 : Interface specification is mandatory for link-local addresses\n");
2534         ret = -1;
2535         goto exit;
2536     }
2537 
2538     ret = ERR_OK;
2539 
2540 exit:
2541 #if LWIP_DNS
2542     lwip_freeaddrinfo(res);
2543 #endif /* LWIP_DNS */
2544 
2545     return ret;
2546 }
2547 
2548 /*
2549  * Function to update ping6_stats
2550  * stats is maintained in ping6_stats structure
2551  */
update_ping6_stats(ping6_stats_t * ping6_stats,u32_t rtt,u32_t nreceived)2552 LWIP_STATIC void update_ping6_stats(ping6_stats_t *ping6_stats, u32_t rtt, u32_t nreceived)
2553 {
2554     if (rtt > ping6_stats->max_rtt) {
2555         ping6_stats->max_rtt = rtt;
2556     }
2557 
2558     if (ping6_stats->flag == 0 || rtt < ping6_stats->min_rtt) {
2559         ping6_stats->min_rtt = rtt;
2560         ping6_stats->flag = 1;
2561     }
2562 
2563     ping6_stats->avg_rtt = (float)(ping6_stats->avg_rtt +
2564                                    (float)((float)((float)rtt - ping6_stats->avg_rtt) / (float)(nreceived)));
2565 }
2566 
convert_icmpv6_err_to_string(u8_t err_type)2567 LWIP_STATIC const char *convert_icmpv6_err_to_string(u8_t err_type)
2568 {
2569     switch (err_type) {
2570         case ICMP6_TYPE_DUR:
2571             return "Destination Unreachable";
2572         case ICMP6_TYPE_PTB:
2573             return "Packet too big";
2574         case ICMP6_TYPE_TE:
2575             return "Time Exceeded";
2576         case ICMP6_TYPE_PP:
2577             return "Parameter Problem";
2578         default:
2579             break;
2580     }
2581     return "Unknown Error";
2582 }
2583 
2584 #ifdef LOSCFG_SHELL_CMD_DEBUG
2585 SHELLCMD_ENTRY(ping6_shellcmd, CMD_TYPE_EX, "ping6", XARGS, (CmdCallBackFunc)osShellPing6);
2586 #endif /* LOSCFG_SHELL_CMD_DEBUG */
2587 #endif /* LWIP_IPV6 */
2588 
2589 #if LWIP_SNTP
osShellNtpdate(int argc,const char ** argv)2590 u32_t osShellNtpdate(int argc, const char **argv)
2591 {
2592     int server_num = 0;
2593     char *ret = NULL;
2594     struct timeval get_time;
2595     char buf[50];
2596 
2597     (void)memset_s(&get_time, sizeof(struct timeval), 0, sizeof(struct timeval));
2598 
2599     if (!tcpip_init_finish) {
2600         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
2601         return LOS_NOK;
2602     }
2603 
2604     if (argc < 1 || argv == NULL) {
2605         goto usage;
2606     }
2607 
2608     server_num = lwip_sntp_start(argc, (char **)argv, &get_time);
2609     if (server_num >= 0 && server_num < argc) {
2610         ret = ctime_r((time_t *)&get_time.tv_sec, buf);
2611         if (ret != NULL) {
2612             PRINTK("time server %s: %s\n", argv[server_num], ret);
2613         } else {
2614             PRINTK("ctime return null error\n");
2615         }
2616     } else {
2617         PRINTK("no server suitable for synchronization found\n");
2618     }
2619 
2620     return LOS_OK;
2621 
2622 usage:
2623     PRINTK("\nUsage:\n");
2624     PRINTK("ntpdate [SERVER_IP1] [SERVER_IP2] ...\n");
2625     return LOS_NOK;
2626 }
2627 
2628 #ifdef LOSCFG_SHELL_CMD_DEBUG
2629 SHELLCMD_ENTRY(ntpdate_shellcmd, CMD_TYPE_EX, "ntpdate", XARGS, (CmdCallBackFunc)osShellNtpdate);
2630 #endif /* LOSCFG_SHELL_CMD_DEBUG */
2631 
2632 #endif /* LWIP_SNTP*/
2633 
2634 #if LWIP_DNS
osShellDns(int argc,const char ** argv)2635 u32_t osShellDns(int argc, const char **argv)
2636 {
2637     ip_addr_t dns = {0};
2638     err_t err;
2639     int i;
2640     if (argc < 1 || argv == NULL) {
2641         goto usage;
2642     }
2643 
2644     if (tcpip_init_finish == 0) {
2645         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
2646         return LOS_NOK;
2647     }
2648 
2649     if (argc == 1 && (strcmp(argv[0], "-a") == 0)) {
2650         for (i = 0; i < DNS_MAX_SERVERS; i++) {
2651             err = lwip_dns_getserver((u8_t)i, &dns);
2652             if (err == ERR_OK) {
2653                 PRINTK("dns %d: %s\n", i + 1, ipaddr_ntoa_unsafe(&dns));
2654             } else {
2655                 PRINTK("dns: failed\n");
2656                 return LOS_NOK;
2657             }
2658         }
2659         return LOS_OK;
2660     } else if (argc == 2) {
2661         i = atoi(argv[0]);
2662         if ((i <= 0) || (i > DNS_MAX_SERVERS))
2663             goto usage;
2664 #if LWIP_IPV6
2665         if (ip6addr_aton(argv[1], ((ip6_addr_t *)&dns))) {
2666 #if LWIP_IPV4 && LWIP_IPV6
2667             dns.type = IPADDR_TYPE_V6;
2668 #endif
2669             if (!ip6_addr_isglobal((ip6_addr_t *)&dns)) {
2670                 PRINTK("ip address<%s> is wrong\n", argv[1]);
2671                 return LOS_NOK;
2672             }
2673         } else
2674 #endif
2675         {
2676 #if LWIP_IPV4
2677             ((ip4_addr_t *)&dns)->addr = ipaddr_addr(argv[1]);
2678             if (((ip4_addr_t *)&dns)->addr == IPADDR_NONE) {
2679                 PRINTK("ip address<%s> is wrong\n", argv[1]);
2680                 return LOS_NOK;
2681             }
2682 #if LWIP_IPV4 && LWIP_IPV6
2683             dns.type = IPADDR_TYPE_V4;
2684 #endif
2685 #endif
2686         }
2687 
2688         err = lwip_dns_setserver((u8_t)(i - 1), &dns);
2689         if (err != ERR_OK) {
2690             PRINTK("dns : failed\n");
2691             return LOS_NOK;
2692         }
2693         return LOS_OK;
2694     }
2695 usage:
2696     PRINTK("usage:\n");
2697     PRINTK("\tdns <1-%d> <IP>\n", DNS_MAX_SERVERS);
2698     PRINTK("\tdns -a\n");
2699     return LOS_NOK;
2700 }
2701 
2702 #ifdef LOSCFG_SHELL_CMD_DEBUG
2703 SHELLCMD_ENTRY(dns_shellcmd, CMD_TYPE_EX, "dns", XARGS, (CmdCallBackFunc)osShellDns);
2704 #endif /* LOSCFG_SHELL_CMD_DEBUG */
2705 #endif /* LWIP_DNS */
2706 #if LWIP_IPV6
2707 extern struct nd6_neighbor_cache_entry neighbor_cache[LWIP_ND6_NUM_NEIGHBORS];
2708 #endif
2709 #if LWIP_IPV6
netstat_get_udp_sendQLen6(struct udp_pcb * udppcb,struct pbuf * udpbuf)2710 int netstat_get_udp_sendQLen6(struct udp_pcb *udppcb, struct pbuf *udpbuf)
2711 {
2712     int sendLen = -1;
2713     u16_t offset = 0, len;
2714     struct ip6_hdr *iphdr = NULL;
2715     struct udp_hdr *udphdr = NULL;
2716     struct ip6_dest_hdr *dest_hdr = NULL;
2717     struct ip6_frag_hdr *frag_hdr = NULL;
2718     u8_t nexth;
2719     u16_t hlen = 0;
2720 
2721     LWIP_ERROR("netstat_get_udp6_sendQLen: NULL pcb received\n", (udppcb != NULL), return -1);
2722     LWIP_ERROR("netstat_get_udp6_sendQLen: NULL pbuf received\n", (udpbuf != NULL), return -1);
2723 
2724     iphdr = (struct ip6_hdr *)udpbuf->payload;
2725 
2726     if (!(ip6_addr_cmp(&iphdr->dest, ip_2_ip6(&udppcb->remote_ip)) &&
2727           (ip_addr_isany(&udppcb->local_ip) ||
2728            ip6_addr_cmp(&iphdr->src, ip_2_ip6(&udppcb->local_ip))))) {
2729         goto FUNC_OUT;
2730     }
2731 
2732     len = IP6_HLEN;
2733     if (pbuf_header(udpbuf, (s16_t)(-(s16_t)(len)))) {
2734         goto FUNC_OUT;
2735     }
2736 
2737     offset = len;
2738 
2739     nexth = IP6H_NEXTH(iphdr);
2740     while (offset < udpbuf->tot_len) {
2741         if (nexth == IP6_NEXTH_NONE || nexth == IP6_NEXTH_UDP || nexth == IP6_NEXTH_UDPLITE) {
2742             break;
2743         }
2744         switch (nexth) {
2745             case IP6_NEXTH_HOPBYHOP:
2746             case IP6_NEXTH_ROUTING:
2747                 nexth = *((u8_t *)udpbuf->payload);
2748                 hlen = (u16_t)(8 * (1 + *((u8_t *)udpbuf->payload + 1)));
2749                 break;
2750             case IP6_NEXTH_DESTOPTS:
2751                 nexth = *((u8_t *)udpbuf->payload);
2752                 dest_hdr = (struct ip6_dest_hdr *)udpbuf->payload;
2753                 hlen = (u16_t)(8 * (1 + dest_hdr->_hlen));
2754                 break;
2755             case IP6_NEXTH_FRAGMENT:
2756                 frag_hdr = (struct ip6_frag_hdr *)udpbuf->payload;
2757                 nexth = frag_hdr->_nexth;
2758                 hlen = IP6_FRAG_HLEN;
2759                 break;
2760             default:
2761                 /* Unknown next_header */
2762                 goto FUNC_OUT;
2763         }
2764 
2765         (void)pbuf_header(udpbuf, (s16_t)(-(s16_t)hlen));
2766         offset = (u16_t)(offset + hlen);
2767     }
2768 
2769     /* If the while loop test condition failed , then revert the last offset change */
2770     if (offset >= udpbuf->tot_len) {
2771         offset = (u16_t)(offset - hlen);
2772         goto FUNC_OUT;
2773     }
2774 
2775     LWIP_ERROR("Transport option should be UDP", (nexth == IP6_NEXTH_UDP || nexth == IP6_NEXTH_UDPLITE), goto FUNC_OUT);
2776 
2777     if (offset > iphdr->_plen) {
2778         goto FUNC_OUT;
2779     }
2780 
2781     /* check if there is enough space for atleast udp header available */
2782     if (udpbuf->tot_len < UDP_HLEN) {
2783         goto FUNC_OUT;
2784     }
2785 
2786     udphdr = (struct udp_hdr *)udpbuf->payload;
2787     if ((ntohs(udphdr->dest) == udppcb->remote_port) && (ntohs(udphdr->src) == udppcb->local_port)) {
2788         if (ntohs(udphdr->len) > UDP_HLEN) {
2789             sendLen = ntohs(udphdr->len) - UDP_HLEN;
2790         } else {
2791             sendLen = udpbuf->tot_len - UDP_HLEN;
2792         }
2793     }
2794 
2795 FUNC_OUT:
2796     (void)pbuf_header(udpbuf, (s16_t)offset); // can not cross max limit of s16_t
2797     return sendLen;
2798 }
2799 #endif
2800 
2801 #if LWIP_IPV4
netstat_get_udp_sendQLen(struct udp_pcb * udppcb,struct pbuf * udpbuf)2802 int netstat_get_udp_sendQLen(struct udp_pcb *udppcb, struct pbuf *udpbuf)
2803 {
2804     int sendLen = -1;
2805     u16_t offset = 0, len;
2806     struct ip_hdr *iphdr = NULL;
2807     struct udp_hdr *udphdr = NULL;
2808 
2809     LWIP_ERROR("netstat_get_udp_sendQLen: NULL pcb received\n", (udppcb != NULL), return -1);
2810     LWIP_ERROR("netstat_get_udp_sendQLen: NULL pbuf received\n", (udpbuf != NULL), return -1);
2811 
2812     iphdr = (struct ip_hdr *)udpbuf->payload;
2813 
2814     if (!(ip4_addr_cmp(&iphdr->dest, ip_2_ip4(&udppcb->remote_ip)) &&
2815           (ip_addr_isany(&udppcb->local_ip) ||
2816            ip4_addr_cmp(&iphdr->src, ip_2_ip4(&udppcb->local_ip))))) {
2817         goto FUNC_OUT;
2818     }
2819 #if LWIP_UDPLITE
2820     if ((IPH_PROTO(iphdr) != IP_PROTO_UDP) && (IPH_PROTO(iphdr) != IP_PROTO_UDPLITE)) {
2821 #else
2822     if (IPH_PROTO(iphdr) != IP_PROTO_UDP) {
2823 #endif
2824         goto FUNC_OUT;
2825     }
2826 
2827     if ((ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK) != 0) {
2828         goto FUNC_OUT;
2829     }
2830 
2831     len = (u16_t)(IPH_HL(iphdr) * 4);
2832     if (pbuf_header(udpbuf, (s16_t)(-len))) {
2833         goto FUNC_OUT;
2834     }
2835 
2836     offset = (u16_t)(offset + len);
2837 
2838     udphdr = (struct udp_hdr *)udpbuf->payload;
2839     if ((ntohs(udphdr->dest) == udppcb->remote_port) && (ntohs(udphdr->src) == udppcb->local_port)) {
2840         sendLen = ntohs(udphdr->len) - UDP_HLEN;
2841     }
2842 
2843 FUNC_OUT:
2844     (void)pbuf_header(udpbuf, (s16_t)offset);
2845     return sendLen;
2846 }
2847 #endif
2848 
2849 int netstat_tcp_recvq(struct tcp_pcb *tpcb)
2850 {
2851     unsigned int retVal = 0;
2852 #if LWIP_SO_RCVBUF
2853     struct netconn *conn = NULL;
2854 #endif
2855 
2856     LWIP_ERROR("netstat_tcp_recvq: Received NULL pcb\n", (tpcb != NULL), return 0);
2857 
2858 #if LWIP_SO_RCVBUF
2859     conn = (struct netconn *)tpcb->callback_arg;
2860     if (conn != NULL) {
2861         switch (conn->type) {
2862             case NETCONN_TCP:
2863             case NETCONN_RAW:
2864 #if LWIP_IPV6
2865             case NETCONN_RAW_IPV6:
2866             case NETCONN_UDP_IPV6:
2867 #endif
2868             case NETCONN_UDP:
2869                 SYS_ARCH_GET(((unsigned int)conn->recv_avail /*+ conn->lrcv_left*/), retVal);
2870                 break;
2871             default:
2872                 retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
2873         }
2874     }
2875 #endif
2876 
2877     return (int)retVal;
2878 }
2879 
2880 int netstat_tcp_sendq(struct tcp_pcb *tpcb)
2881 {
2882     int retVal = 0;
2883     struct tcp_seg *useg = NULL;
2884 
2885     LWIP_ERROR("netstat_tcp_sendq: Received NULL pcb\n", (tpcb != NULL), return 0);
2886 
2887     for (useg = tpcb->unacked; useg != NULL; useg = useg->next) {
2888         retVal = retVal + useg->len;
2889     }
2890 
2891     return retVal;
2892 }
2893 
2894 #if LWIP_IPV6
2895 int netstat_udp_sendq6(struct udp_pcb *upcb)
2896 {
2897     int retLen = 0;
2898     int ret;
2899     int idx = 0;
2900     int i;
2901 #if LWIP_ND6_QUEUEING
2902     struct nd6_q_entry *neibq = NULL;
2903 #endif
2904 
2905     LWIP_ERROR("netstat_udp_sendq6: Received NULL pcb\n", (upcb != NULL), return 0);
2906 
2907     for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) {
2908         if (neighbor_cache[i].state != ND6_NO_ENTRY) {
2909             if (ip6_addr_cmp(&upcb->remote_ip.u_addr.ip6, &neighbor_cache[i].next_hop_address)) {
2910                 idx = i;
2911                 break;
2912             }
2913         }
2914     }
2915 #if LWIP_ND6_QUEUEING
2916     for (neibq = neighbor_cache[idx].q; neibq != NULL; neibq = neibq->next) {
2917         ret = netstat_get_udp_sendQLen6(upcb, neibq->p);
2918         if (ret >= 0) {
2919             retLen += ret;
2920         }
2921     }
2922 #else
2923     ret = netstat_get_udp_sendQLen6(upcb, neighbor_cache[idx].q);
2924     if (ret >= 0) {
2925       retLen += ret;
2926     }
2927 #endif
2928     return retLen;
2929 }
2930 #endif
2931 
2932 #if LWIP_IPV4
2933 int netstat_udp_sendq(struct udp_pcb *upcb)
2934 {
2935     int retLen = 0;
2936     int ret;
2937     int arpidx = -1;
2938     int i;
2939 #if ARP_QUEUEING
2940     struct etharp_q_entry *arpq = NULL;
2941 #endif
2942 
2943     LWIP_ERROR("netstat_udp_sendq: Received NULL pcb\n", (upcb != NULL), return 0);
2944 
2945     for (i = 0; i < ARP_TABLE_SIZE; ++i) {
2946         if (arp_table[i].state != ETHARP_STATE_EMPTY) {
2947             if (ip4_addr_cmp(ip_2_ip4(&upcb->remote_ip), &arp_table[i].ipaddr)) {
2948                 arpidx = i;
2949                 break;
2950             }
2951         }
2952     }
2953 
2954     if (arpidx >= 0) {
2955 #if ARP_QUEUEING
2956         for (arpq = arp_table[arpidx].q; arpq != NULL; arpq = arpq->next) {
2957             ret = netstat_get_udp_sendQLen(upcb, arpq->p);
2958             if (ret > 0) {
2959                 retLen += ret;
2960                 if (retLen <= 0) { // overflow, set rteLen = -1 to indicate
2961                     retLen = -1;
2962                     break;
2963                 }
2964             }
2965         }
2966 #else
2967         ret = netstat_get_udp_sendQLen(upcb, arp_table[arpidx].q);
2968         if (ret > 0) {
2969           retLen += ret;
2970           if (retLen <= 0) { // overflow, set rteLen = -1 to indicate
2971             retLen = -1;
2972           }
2973         }
2974 #endif
2975     }
2976     return retLen;
2977 }
2978 #endif
2979 int netstat_netconn_recvq(const struct netconn *conn)
2980 {
2981     unsigned int retVal = 0;
2982 
2983 #if LWIP_SO_RCVBUF
2984     if (conn == NULL) {
2985         return 0;
2986     }
2987 
2988     switch (NETCONNTYPE_GROUP((unsigned int)(conn->type))) {
2989         case NETCONN_TCP:
2990         case NETCONN_RAW:
2991 #if PF_PKT_SUPPORT
2992         case NETCONN_PKT_RAW:
2993 #endif
2994         case NETCONN_UDP:
2995             SYS_ARCH_GET(((unsigned int)conn->recv_avail /*+ conn->lrcv_left*/), retVal);
2996             break;
2997         default:
2998             retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
2999     }
3000 #endif
3001     return (int)retVal;
3002 }
3003 
3004 int netstat_netconn_sendq(struct netconn *conn)
3005 {
3006     int retVal = 0;
3007 
3008     if (conn == NULL) {
3009         return 0;
3010     }
3011 
3012     switch (NETCONNTYPE_GROUP((unsigned int)(conn->type))) {
3013         case NETCONN_TCP:
3014             retVal = netstat_tcp_sendq(conn->pcb.tcp);
3015             break;
3016         case NETCONN_RAW:
3017             retVal = 0;
3018             break;
3019 #if PF_PKT_SUPPORT
3020         case NETCONN_PKT_RAW:
3021             retVal = 0; /* always be 0 as frame send to driver directly */
3022 #endif
3023             break;
3024         case NETCONN_UDP:
3025             retVal = netstat_udp_sendq(conn->pcb.udp);
3026             break;
3027         default:
3028             retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
3029     }
3030 
3031     return retVal;
3032 }
3033 void netstat_internal(void *ctx)
3034 {
3035     s8_t local_ip_port[64] = {0};
3036     s8_t remote_ip_port[64] = {0};
3037     struct tcp_pcb *tpcb = NULL;
3038     struct tcp_pcb_listen *lpcb = NULL;
3039     struct udp_pcb *upcb = NULL;
3040     struct raw_pcb *rpcb = NULL;
3041     s8_t *entry_buf = NULL;
3042     u32_t entry_buf_len;
3043     u32_t entry_buf_offset;
3044     struct netstat_data *ndata = (struct netstat_data *)ctx;
3045     int iRet;
3046     int recvQlen = 0;
3047     int sendQlen = 0;
3048     u_int proto;
3049 #if PF_PKT_SUPPORT
3050     u8_t netif_name[IFNAMSIZ];
3051     struct netif *netif = NULL;
3052 #endif
3053 
3054     if (ndata == NULL) {
3055         return;
3056     }
3057     entry_buf = ndata->netstat_out_buf;
3058     entry_buf_len = ndata->netstat_out_buf_len;
3059     entry_buf_offset = 0;
3060 
3061     if (entry_buf == NULL) {
3062         goto out;
3063     }
3064     iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3065                       "========== total sockets %d ======  unused sockets %d ==========\n",
3066                       LWIP_CONFIG_NUM_SOCKETS, get_unused_socket_num());
3067     if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3068         goto out;
3069     }
3070     entry_buf_len -= (u32_t)(iRet);
3071     entry_buf_offset += (u32_t)(iRet);
3072 
3073 #if LWIP_TCP
3074     if (tcp_active_pcbs != NULL || tcp_bound_pcbs != NULL || tcp_tw_pcbs != NULL || tcp_listen_pcbs.pcbs != NULL) {
3075         iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3076                           "%-8s%-12s%-12s%-24s%-24s%-16s\n",
3077                           "Proto", "Recv-Q", "Send-Q", "Local Address", "Foreign Address", "State");
3078         if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3079             goto out;
3080         }
3081         entry_buf_len -= (u32_t)(iRet);
3082         entry_buf_offset += (u32_t)(iRet);
3083 
3084         for (tpcb = tcp_active_pcbs; tpcb != NULL; tpcb = tpcb->next) {
3085             iRet = snprintf_s((char *)local_ip_port, sizeof(local_ip_port), (sizeof(local_ip_port) - 1),
3086                               "%s:%d", ipaddr_ntoa(&tpcb->local_ip), tpcb->local_port);
3087             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(local_ip_port))) {
3088                 goto out;
3089             }
3090 
3091             iRet = snprintf_s((char *)remote_ip_port, sizeof(remote_ip_port), (sizeof(remote_ip_port) - 1),
3092                               "%s:%d", ipaddr_ntoa(&tpcb->remote_ip), tpcb->remote_port);
3093             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(remote_ip_port))) {
3094                 goto out;
3095             }
3096             if (tpcb->state == SYN_RCVD) {
3097                 recvQlen = 0;
3098                 sendQlen = 0;
3099             } else {
3100                 recvQlen = netstat_netconn_recvq(tpcb->callback_arg);
3101                 sendQlen = netstat_netconn_sendq(tpcb->callback_arg);
3102             }
3103             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3104                               IP_IS_V6(&tpcb->local_ip) ? "%-8s%-12d%-12d%-39s%-39s%-16s\n" :
3105                               "%-8s%-12d%-12d%-24s%-24s%-16s\n",
3106                               IP_IS_V6(&tpcb->local_ip) ? "tcp-ip6" : "tcp",
3107                               recvQlen, sendQlen, local_ip_port, remote_ip_port, tcp_state_str[tpcb->state]);
3108             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3109                 goto out;
3110             }
3111             entry_buf_len -= (u32_t)(iRet);
3112             entry_buf_offset += (u32_t)(iRet);
3113         }
3114 
3115         /* For bound PCBs */
3116         sendQlen = 0;
3117         recvQlen = 0;
3118 
3119         for (tpcb = tcp_bound_pcbs; tpcb != NULL; tpcb = tpcb->next) {
3120             iRet = snprintf_s((char *)local_ip_port, sizeof(local_ip_port), (sizeof(local_ip_port) - 1),
3121                               "%s:%d", ipaddr_ntoa(&tpcb->local_ip), tpcb->local_port);
3122             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(local_ip_port))) {
3123                 goto out;
3124             }
3125 
3126             iRet = snprintf_s((char *)remote_ip_port, sizeof(remote_ip_port), (sizeof(remote_ip_port) - 1),
3127                               "%s:%d", ipaddr_ntoa(&tpcb->remote_ip), tpcb->remote_port);
3128             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(remote_ip_port))) {
3129                 goto out;
3130             }
3131 
3132             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3133                               IP_IS_V6(&tpcb->local_ip) ? "%-8s%-12d%-12d%-39s%-39s%-16s\n" :
3134                               "%-8s%-12d%-12d%-24s%-24s%-16s\n",
3135                               IP_IS_V6(&tpcb->local_ip) ? "tcp-ip6" : "tcp",
3136                               recvQlen, sendQlen, local_ip_port, remote_ip_port, tcp_state_str[tpcb->state]);
3137             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3138                 goto out;
3139             }
3140             entry_buf_len -= (u32_t)(iRet);
3141             entry_buf_offset += (u32_t)(iRet);
3142         }
3143 
3144         for (tpcb = tcp_tw_pcbs; tpcb != NULL; tpcb = tpcb->next) {
3145             iRet = snprintf_s((char *)local_ip_port, sizeof(local_ip_port), (sizeof(local_ip_port) - 1),
3146                               "%s:%d", ipaddr_ntoa(&tpcb->local_ip), tpcb->local_port);
3147             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(local_ip_port))) {
3148                 goto out;
3149             }
3150 
3151             iRet = snprintf_s((char *)remote_ip_port, sizeof(remote_ip_port), (sizeof(remote_ip_port) - 1),
3152                               "%s:%d", ipaddr_ntoa(&tpcb->remote_ip), tpcb->remote_port);
3153             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(remote_ip_port))) {
3154                 goto out;
3155             }
3156 
3157             recvQlen = netstat_netconn_recvq(tpcb->callback_arg);
3158             sendQlen = netstat_netconn_sendq(tpcb->callback_arg);
3159             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3160                               IP_IS_V6(&tpcb->local_ip) ? "%-8s%-12d%-12d%-39s%-39s%-16s\n" :
3161                               "%-8s%-12d%-12d%-24s%-24s%-16s\n",
3162                               IP_IS_V6(&tpcb->local_ip) ? "tcp-ip6" : "tcp",
3163                               recvQlen, sendQlen, local_ip_port, remote_ip_port, tcp_state_str[tpcb->state]);
3164             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3165                 goto out;
3166             }
3167             entry_buf_len -= (u32_t)(iRet);
3168             entry_buf_offset += (u32_t)(iRet);
3169         }
3170 
3171         /* For listen PCBs */
3172         recvQlen = 0;
3173         sendQlen = 0;
3174 
3175         for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) {
3176             iRet = snprintf_s((char *)local_ip_port, sizeof(local_ip_port), (sizeof(local_ip_port) - 1),
3177                               "%s:%d", ipaddr_ntoa(&lpcb->local_ip), lpcb->local_port);
3178             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(local_ip_port))) {
3179                 goto out;
3180             }
3181 
3182             iRet = snprintf_s((char *)remote_ip_port, sizeof(remote_ip_port), (sizeof(remote_ip_port) - 1),
3183                               "%s:%d", ipaddr_ntoa(&lpcb->remote_ip), 0);
3184             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(remote_ip_port))) {
3185                 goto out;
3186             }
3187 
3188             recvQlen = netstat_netconn_recvq(lpcb->callback_arg);
3189 
3190             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3191                               IP_IS_V6(&lpcb->local_ip) ? "%-8s%-12d%-12d%-39s%-39s%-16s\n" :
3192                               "%-8s%-12d%-12d%-24s%-24s%-16s\n",
3193                               IP_IS_V6(&lpcb->local_ip) ? "tcp-ip6" : "tcp",
3194                               recvQlen, sendQlen, local_ip_port, remote_ip_port, tcp_state_str[lpcb->state]);
3195             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3196                 goto out;
3197             }
3198             entry_buf_len -= (u32_t)(iRet);
3199             entry_buf_offset += (u32_t)(iRet);
3200         }
3201     }
3202 #endif
3203 #if LWIP_UDP
3204     if (udp_pcbs != NULL) {
3205         iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3206                           "\n%-8s%-12s%-12s%-24s%-24s\n",
3207                           "Proto", "Recv-Q", "Send-Q", "Local Address", "Foreign Address");
3208         if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3209             goto out;
3210         }
3211         entry_buf_len -= (u32_t)(iRet);
3212         entry_buf_offset += (u32_t)(iRet);
3213 
3214         for (upcb = udp_pcbs; upcb != NULL; upcb = upcb->next) {
3215             iRet = snprintf_s((char *)local_ip_port, sizeof(local_ip_port), (sizeof(local_ip_port) - 1),
3216                               "%s:%d", ipaddr_ntoa(&upcb->local_ip), upcb->local_port);
3217             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(local_ip_port))) {
3218                 goto out;
3219             }
3220 
3221             iRet = snprintf_s((char *)remote_ip_port, sizeof(remote_ip_port), (sizeof(remote_ip_port) - 1),
3222                               "%s:%d", ipaddr_ntoa(&upcb->remote_ip), upcb->remote_port);
3223             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(remote_ip_port))) {
3224                 goto out;
3225             }
3226 
3227             recvQlen = netstat_netconn_recvq(upcb->recv_arg);
3228 #if LWIP_IPV6
3229             sendQlen = IP_IS_V6(&upcb->local_ip) ? netstat_udp_sendq6(upcb) : netstat_netconn_sendq(upcb->recv_arg);
3230 #else
3231             sendQlen = netstat_netconn_sendq(upcb->recv_arg);
3232 #endif
3233             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3234                               IP_IS_V6(&upcb->local_ip) ? "%-8s%-12d%-12d%-39s%-39s%-16s\n" :
3235                               "%-8s%-12d%-12d%-24s%-24s%-16s\n",
3236                               IP_IS_V6(&upcb->local_ip) ? "udp-ip6" : "udp",
3237                               recvQlen, sendQlen, local_ip_port, remote_ip_port, " ");
3238             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3239                 goto out;
3240             }
3241             entry_buf_len -= (u32_t)(iRet);
3242             entry_buf_offset += (u32_t)(iRet);
3243         }
3244     }
3245 #endif
3246 
3247 #if LWIP_RAW
3248     if (raw_pcbs != NULL) {
3249         iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3250                           "\n%-8s%-12s%-12s%-20s%-20s%-16s%-16s\n",
3251                           "Type", "Recv-Q", "Send-Q", "Local Address", "Foreign Address", "Protocol", "HDRINCL");
3252         if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3253             goto out;
3254         }
3255         entry_buf_len -= (u32_t)(iRet);
3256         entry_buf_offset += (u32_t)(iRet);
3257 
3258         for (rpcb = raw_pcbs; rpcb != NULL; rpcb = rpcb->next) {
3259             iRet = snprintf_s((char *)local_ip_port, sizeof(local_ip_port), (sizeof(local_ip_port) - 1),
3260                               "%s", ipaddr_ntoa(&rpcb->local_ip));
3261             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(local_ip_port))) {
3262                 goto out;
3263             }
3264 
3265             iRet = snprintf_s((char *)remote_ip_port, sizeof(remote_ip_port), (sizeof(remote_ip_port) - 1),
3266                               "%s", ipaddr_ntoa(&rpcb->remote_ip));
3267             if ((iRet <= 0) || ((u32_t)(iRet) >= sizeof(remote_ip_port))) {
3268                 goto out;
3269             }
3270 
3271             recvQlen = netstat_netconn_recvq(rpcb->recv_arg);
3272             sendQlen = netstat_netconn_sendq(rpcb->recv_arg);
3273 
3274             proto = rpcb->protocol;//raw_proto;
3275             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3276                               "%-8s%-12d%-12d%-20s%-20s%-16u%-16d\n",
3277                               "raw", recvQlen, sendQlen, local_ip_port, remote_ip_port, proto, /*rpcb->hdrincl*/0);
3278             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3279                 goto out;
3280             }
3281             entry_buf_len -= (u32_t)(iRet);
3282             entry_buf_offset += (u32_t)(iRet);
3283         }
3284     }
3285 #if PF_PKT_SUPPORT
3286     if (pkt_raw_pcbs != NULL) {
3287         iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3288                           "\n%-12s%-12s%-12s%-16s%-12s\n", "Type", "Recv-Q", "Send-Q", "Protocol", "netif");
3289         if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3290             goto out;
3291         }
3292         entry_buf_len -= (u32_t)(iRet);
3293         entry_buf_offset += (u32_t)(iRet);
3294 
3295         for (rpcb = pkt_raw_pcbs; rpcb != NULL; rpcb = rpcb->next) {
3296             recvQlen = netstat_netconn_recvq(rpcb->recv_arg);
3297             sendQlen = netstat_netconn_sendq(rpcb->recv_arg);
3298 
3299             for (netif = netif_list; netif != NULL; netif = netif->next) {
3300                 if (netif_get_index(netif)/*netif->ifindex*/ == rpcb->netif_idx/*index*/) {
3301                     (void)snprintf_s((char *)netif_name, IFNAMSIZ, IFNAMSIZ - 1, "%s", netif_get_name(netif));
3302                     break;
3303                 }
3304             }
3305 
3306             if (netif == NULL) {
3307                 (void)snprintf_s((char *)netif_name, IFNAMSIZ, IFNAMSIZ - 1, "%s", "None");
3308             }
3309 
3310             proto = rpcb->protocol;//ntohs(rpcb->proto.eth_proto);
3311 
3312             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
3313                               "%-12s%-12d%-12d%-16x%-12s\n", "pkt-raw", recvQlen, sendQlen, proto, netif_name);
3314             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
3315                 goto out;
3316             }
3317             entry_buf_len -= (u32_t)(iRet);
3318             entry_buf_offset += (u32_t)(iRet);
3319         }
3320     }
3321 #endif
3322 #endif
3323 
3324 out:
3325     ndata->netstat_out_buf_updated_len = entry_buf_offset;
3326     sys_sem_signal(&ndata->cb_completed);
3327     return;
3328 }
3329 
3330 u32_t osShellNetstat(int argc, const char **argv)
3331 {
3332     struct netstat_data ndata;
3333     err_t err;
3334 
3335     if (argc > 0) {
3336         PRINTK("\nUsage: netstat\n");
3337         return LOS_NOK;
3338     }
3339 
3340     if (tcpip_init_finish == 0) {
3341         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
3342         return LOS_NOK;
3343     }
3344 
3345     ndata.netstat_out_buf = mem_malloc(MAX_NETSTAT_ENTRY);
3346     if (ndata.netstat_out_buf == NULL) {
3347         PRINTK("%s: no free mem\n", __FUNCTION__);
3348         return LOS_NOK;
3349     }
3350     ndata.netstat_out_buf_len = MAX_NETSTAT_ENTRY;
3351     ndata.netstat_out_buf_updated_len = 0;
3352 
3353     if (sys_sem_new(&ndata.cb_completed, 0) != ERR_OK) {
3354         goto err_hand;
3355     }
3356 
3357     err = tcpip_callback(netstat_internal, &ndata);
3358     if (err != ERR_OK) {
3359         sys_sem_free(&ndata.cb_completed);
3360         goto err_hand;
3361     }
3362 
3363     (void)sys_arch_sem_wait(&ndata.cb_completed, 0);
3364     sys_sem_free(&ndata.cb_completed);
3365     if ((ndata.netstat_out_buf_updated_len > 0) && (ndata.netstat_out_buf_updated_len < MAX_NETSTAT_ENTRY)) {
3366         PRINTK("%s\n", (char *)(ndata.netstat_out_buf));
3367         mem_free(ndata.netstat_out_buf);
3368         return LOS_OK;
3369     }
3370 
3371 err_hand:
3372     mem_free(ndata.netstat_out_buf);
3373     ndata.netstat_out_buf = NULL;
3374     (void)(argv);
3375     return LOS_NOK;
3376 }
3377 #ifdef LOSCFG_SHELL
3378 SHELLCMD_ENTRY(netstat_shellcmd, CMD_TYPE_EX, "netstat", XARGS, (CmdCallBackFunc)osShellNetstat);
3379 #endif /* LOSCFG_SHELL */
3380 
3381 #define NETIF_NAME_LEN 10
3382 STATIC VOID OsShellDhclientUsage(VOID)
3383 {
3384     PRINTK("<netif name>,       start dhcp for netif name\n"
3385            "-x <netif name>,    stop dhcp for netif name\n"
3386            "-h | --help,        print dhclient command usage\n");
3387 }
3388 
3389 u32_t OsShellDhclient(int argc, const char **argv)
3390 {
3391     struct netif *netif = NULL;
3392 
3393     if (argc == 0) {
3394         OsShellDhclientUsage();
3395     } else if (argc == 1) {
3396         if (strcmp(argv[0], "-h") == 0 || strcmp(argv[0], "--help") == 0) {
3397             OsShellDhclientUsage();
3398         } else {
3399             netif = netif_find(argv[0]);
3400             if (netif != NULL) {
3401                 (VOID)netifapi_dhcp_start(netif);
3402             } else {
3403                 PRINTK("dhclient: invalid option: %s\n", argv[0]);
3404                 OsShellDhclientUsage();
3405             }
3406         }
3407     } else if (argc == 2) {
3408         if (strcmp(argv[0], "-x") == 0) {
3409             netif = netif_find(argv[1]);
3410             if (netif != NULL) {
3411                 (VOID)netifapi_dhcp_stop(netif);
3412             } else {
3413                 PRINTK("dhclient: invalid option: %s\n", argv[1]);
3414                 OsShellDhclientUsage();
3415             }
3416         } else {
3417             PRINTK("dhclient: invalid option: %s\n", argv[0]);
3418             OsShellDhclientUsage();
3419         }
3420     } else {
3421         OsShellDhclientUsage();
3422     }
3423 
3424     return 0;
3425 }
3426 
3427 #ifdef LOSCFG_SHELL
3428 SHELLCMD_ENTRY(dhclient_shellcmd, CMD_TYPE_EX, "dhclient", XARGS, (CmdCallBackFunc)OsShellDhclient);
3429 #endif /* LOSCFG_SHELL */
3430 
3431 #ifdef LWIP_DEBUG_TCPSERVER
3432 
3433 #define MAX_SIZE 1024
3434 void tcp_access(int sockfd)
3435 {
3436     size_t n, i;
3437     ssize_t ret;
3438     char msg[MAX_SIZE] = {0};
3439     while (1) {
3440         PRINTK("waiting for recv\n");
3441         (void)memset_s(msg, MAX_SIZE, 0, MAX_SIZE);
3442         ret = recv(sockfd, msg, MAX_SIZE - 1, 0);
3443         if (ret < 0) {
3444             PRINTK("recv failed, %d.\n", (u32_t)ret);
3445             (void)closesocket(sockfd);
3446             return;
3447         } else if (ret == 0) {
3448             (void)closesocket(sockfd);
3449             PRINTK("client disconnect.\n");
3450             return;
3451         }
3452 
3453         n = strlen(msg);
3454         for (i = 0; i < n; ++i) {
3455             if (msg[i] >= 'a' && msg[i] <= 'z') {
3456                 msg[i] = (char)(msg[i] + ('A' - 'a'));
3457             } else if (msg[i] >= 'A' && msg[i] <= 'Z') {
3458                 msg[i] = (char)(msg[i] + ('a' - 'A'));
3459             }
3460         }
3461 
3462         if (send(sockfd, msg, n, 0) < 0) {
3463             PRINTK("send failed!\r\n");
3464             continue;
3465         }
3466     }
3467 }
3468 
3469 u32_t osTcpserver(int argc, const char **argv)
3470 {
3471     uint16_t port;
3472     int sockfd = -1;
3473     int ret;
3474     struct sockaddr_in seraddr;
3475     struct sockaddr_in cliaddr;
3476     u32_t cliaddr_size = (u32_t)sizeof(cliaddr);
3477     int reuse, iPortVal;
3478 
3479     if (tcpip_init_finish == 0) {
3480         PRINTK("tcpip_init have not been called\n");
3481         return LOS_NOK;
3482     }
3483 
3484     if (argc < 1 || argv == NULL) {
3485         PRINTK("\nUsage: tcpserver <port>\n");
3486         return LOS_NOK;
3487     }
3488 
3489     iPortVal = atoi(argv[0]);
3490     /* Port 0 not supported , negative values not supported , max port limit is 65535 */
3491     if (iPortVal <= 0 || iPortVal > 65535) {
3492         PRINTK("\nUsage: Invalid port\n");
3493         return LOS_NOK;
3494     }
3495 
3496     port = (uint16_t)iPortVal;
3497 
3498     /* removed the print of argv[1] as its accessing argv[1] without verifying argc and
3499      * argv[1] not used anywhere else */
3500     PRINTK("argv[0]:%s, argc:%d\r\n", argv[0], argc);
3501     sockfd = socket(AF_INET, SOCK_STREAM, 0);
3502     if (sockfd < 0) {
3503         PRINTK("\nUsage: create socket fail!\n");
3504         return LOS_NOK;
3505     }
3506     reuse = 1;
3507     if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char *)&reuse, sizeof(reuse)) != 0) {
3508         (void)closesocket(sockfd);
3509         PRINTK("set SO_REUSEADDR failed\n");
3510         return LOS_NOK;
3511     }
3512 
3513     (void)memset_s(&seraddr, sizeof(seraddr), 0, sizeof(seraddr));
3514     seraddr.sin_family = AF_INET;
3515     seraddr.sin_addr.s_addr = htonl(INADDR_ANY);
3516     seraddr.sin_port = htons(port);
3517 
3518     ret = bind(sockfd, (struct sockaddr *)&seraddr, sizeof(seraddr));
3519     if (ret < 0) {
3520         PRINTK("bind ip and port failed");
3521         (void)closesocket(sockfd);
3522         return LOS_NOK;
3523     }
3524 
3525     ret = listen(sockfd, 5);
3526     if (ret < 0) {
3527         (void)closesocket(sockfd);
3528         PRINTK("listen failed\n");
3529         return LOS_NOK;
3530     }
3531     while (1) {
3532         PRINTK("waiting for accept\n");
3533         (void)memset_s(&cliaddr, sizeof(struct sockaddr_in), 0, sizeof(struct sockaddr_in));
3534         ret = (int)accept(sockfd, (struct sockaddr *)&cliaddr, &cliaddr_size);
3535         if (ret < 0) {
3536             (void)closesocket(sockfd);
3537             PRINTK("Accept failed, %d\n", ret);
3538             break;
3539         }
3540         tcp_access(ret);
3541     }
3542     return LOS_NOK;            // Hits Only If Accept Fails
3543 }
3544 
3545 #ifdef LOSCFG_SHELL_CMD_DEBUG
3546 SHELLCMD_ENTRY(tcpserver_shellcmd, CMD_TYPE_EX, "tcpserver", XARGS, (CmdCallBackFunc)osTcpserver);
3547 #endif /* LOSCFG_SHELL_CMD_DEBUG */
3548 #endif /* LWIP_DEBUG_TCPSERVER */
3549 
3550 #ifdef LWIP_DEBUG_UDPSERVER
3551 void udpserver(int argc, const char **argv)
3552 {
3553     int sockfd, fromlen;
3554     int ret, iPortVal;
3555     struct sockaddr_in seraddr;
3556     struct sockaddr_in cliaddr;
3557     size_t n, i;
3558 
3559     char msg[MAX_SIZE] = {0};
3560     uint16_t port;
3561 
3562     if (argc < 1) {
3563         PRINTK("\nUsage: udpserver <port>\n");
3564         return;
3565     }
3566 
3567     iPortVal = atoi(argv[0]);
3568     /* Port 0 not supported , negative values not supported , max port limit is 65535 */
3569     if (iPortVal <= 0 || iPortVal > 65535) {
3570         PRINTK("\nUsage: Invalid Port\n");
3571         return;
3572     }
3573 
3574     port = (uint16_t)iPortVal;
3575 
3576     PRINTK("port:%d\r\n", port);
3577 
3578     sockfd = lwip_socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
3579     if (sockfd == -1) {
3580         PRINTK("\ncreate socket fail\n");
3581         return;
3582     }
3583 
3584     (void)memset_s(&seraddr, sizeof(seraddr), 0, sizeof(seraddr));
3585     (void)memset_s(&cliaddr, sizeof(cliaddr), 0, sizeof(cliaddr));
3586     seraddr.sin_family = AF_INET;
3587     seraddr.sin_addr.s_addr = htonl(INADDR_ANY);
3588     seraddr.sin_port = htons(port);
3589     ret = lwip_bind(sockfd, (struct sockaddr *)&seraddr, sizeof(seraddr));
3590     if (ret < 0) {
3591         PRINTK("bind ip and port failed:%d\n", errno);
3592         (void)closesocket(sockfd);
3593         return;
3594     }
3595 
3596     while (1) {
3597         ret = recvfrom(sockfd, msg, MAX_SIZE - 1, 0, (struct sockaddr *)&cliaddr, (socklen_t *)&fromlen);
3598         if (ret >= 0) {
3599             n = strlen(msg);
3600             for (i = 0; i < n; ++i) {
3601                 if (msg[i] >= 'a' && msg[i] <= 'z') {
3602                     msg[i] = (char)(msg[i] + 'A' - 'a');
3603                 } else if (msg[i] >= 'A' && msg[i] <= 'Z') {
3604                     msg[i] = (char)(msg[i] + 'a' - 'A');
3605                 }
3606             }
3607             ret = sendto(sockfd, msg, n + 1, 0, (struct sockaddr *)&cliaddr, (socklen_t)fromlen);
3608             if (ret <= 0 && errno == EPIPE) {
3609                 break;
3610             }
3611         } else {
3612             break;
3613         }
3614     }
3615 
3616     (void)closesocket(sockfd);
3617     return;
3618 }
3619 
3620 #ifdef LOSCFG_SHELL_CMD_DEBUG
3621 SHELLCMD_ENTRY(udpserver_shellcmd, CMD_TYPE_EX, "udpserver", XARGS, (CmdCallBackFunc)udpserver);
3622 #endif /* LOSCFG_SHELL_CMD_DEBUG */
3623 #endif /* LWIP_DEBUG_UDPSERVER */
3624 
3625 #ifdef LWIP_DEBUG_INFO
3626 LWIP_STATIC
3627 u32_t netdebug_memp(int argc, const char **argv)
3628 {
3629     u32_t ret = LOS_OK;
3630     int type;
3631 
3632     if (argc == 2) {
3633         if (!strcmp("-i", argv[1])) {
3634             debug_memp_info();
3635         } else if (!strcmp("-udp", argv[1])) {
3636             debug_memp_type_info(MEMP_UDP_PCB);
3637         } else if (!strcmp("-tcp", argv[1])) {
3638             debug_memp_type_info(MEMP_TCP_PCB);
3639         } else if (!strcmp("-raw", argv[1])) {
3640             debug_memp_type_info(MEMP_RAW_PCB);
3641         } else if (!strcmp("-conn", argv[1])) {
3642             debug_memp_type_info(MEMP_NETCONN);
3643         } else {
3644             ret = LOS_NOK;
3645         }
3646     } else if (argc == 3) {
3647         if (!strcmp("-d", argv[1])) {
3648             type = atoi(argv[2]);
3649             if (type >= 0) {
3650                 debug_memp_detail(type);
3651             } else {
3652                 PRINTK("Error: type < 0\n");
3653                 ret = LOS_NOK;
3654             }
3655         } else {
3656             ret = LOS_NOK;
3657         }
3658     } else {
3659         ret = LOS_NOK;
3660     }
3661 
3662     return ret;
3663 }
3664 
3665 LWIP_STATIC
3666 u32_t netdebug_sock(int argc, const char **argv)
3667 {
3668     int idx;
3669     u32_t ret = LOS_NOK;
3670 
3671     if (argc == 2) {
3672         if (!strcmp("-i", argv[1])) {
3673             /* netdebug sock -i */
3674             for (idx = 0; idx < (int)LWIP_CONFIG_NUM_SOCKETS; idx++) {
3675                 debug_socket_info(idx, 1, 0);
3676             }
3677             ret = LOS_OK;
3678         }
3679     } else if (argc == 3) {
3680         if (!strcmp("-d", argv[1])) {
3681             /* netdebug sock -d <idx> */
3682             idx = atoi(argv[2]);
3683             if (idx >= 0) {
3684                 debug_socket_info(idx, 1, 1);
3685                 ret = LOS_OK;
3686             } else {
3687                 PRINTK("Error: idx < 0\n");
3688             }
3689         }
3690     }
3691 
3692     return ret;
3693 }
3694 
3695 
3696 u32_t osShellNetDebug(int argc, const char **argv)
3697 {
3698     u32_t ret = LOS_NOK;
3699 
3700     if (argc < 1 || argv == NULL) {
3701         goto usage;
3702     }
3703 
3704     if (!strcmp("memp", argv[0])) {
3705         ret = netdebug_memp(argc, argv);
3706         if (ret != LOS_OK) {
3707             goto usage_memp;
3708         }
3709     } else if (!strcmp("sock", argv[0])) {
3710         /* netdebug sock {-i | -d <idx>} */
3711         ret = netdebug_sock(argc, argv);
3712         if (ret != LOS_OK) {
3713             goto usage_sock;
3714         }
3715     } else {
3716         goto usage;
3717     }
3718     return ret;
3719 
3720 usage:
3721     /* Cmd help */
3722     PRINTK("\nUsage:\n");
3723     PRINTK("netdebug memp {-i | -d <type> | -udp | -tcp | -raw |-conn}\n");
3724     PRINTK("netdebug sock {-i | -d <idx>}\n");
3725     return LOS_NOK;
3726 
3727 usage_memp:
3728     /* netdebug memp help */
3729     PRINTK("\nUsage:\n");
3730     PRINTK("netdebug memp {-i | -d <type> | -udp | -tcp | -raw |-conn}\n");
3731     return LOS_NOK;
3732 
3733 usage_sock:
3734     /* netdebug sock help */
3735     PRINTK("\nUsage:\n");
3736     PRINTK("netdebug sock {-i | -d <idx>}\n");
3737     return LOS_NOK;
3738 }
3739 #endif /* LWIP_DEBUG_INFO */
3740 
3741 #if defined(LOSCFG_SHELL_CMD_DEBUG) && defined(LWIP_DEBUG_INFO)
3742 SHELLCMD_ENTRY(netdebug_shellcmd, CMD_TYPE_EX, "netdebug", XARGS, (CmdCallBackFunc)osShellNetDebug);
3743 #endif /* LOSCFG_SHELL_CMD_DEBUG && LWIP_DEBUG_INFO */
3744 
3745 u32_t osShellIpDebug(int argc, const char **argv)
3746 {
3747     u8_t i = 0;
3748     char acIPv6Addr[IP6ADDR_STRLEN_MAX + 1] = {0};
3749     char aclladdr[20] = {0};
3750     const char *acStates[] = {"NO_ENTRY", "INCOMPLETE", "REACHABLE", "STALE", "DELAY", "PROBE"};
3751     u8_t atleastOneEntry = 0;
3752 
3753     if (!tcpip_init_finish) {
3754         PRINTK("%s: tcpip_init have not been called\n", __FUNCTION__);
3755         goto exit;
3756     }
3757 
3758     /* Display prefix */
3759     PRINTK("=================\n");
3760     PRINTK("|| Prefix List ||\n");
3761     PRINTK("=================\n");
3762     PRINTK("%-50s %-16s %-20s\n", "Prefix", "netif", "validLifetime");
3763     PRINTK("---------------------------------------------------------------------------------\n");
3764     /* Display neighbour Cache Entry */
3765     for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) {
3766         if (prefix_list[i].netif != NULL && prefix_list[i].invalidation_timer > 0) {
3767             atleastOneEntry = 1;
3768             (void)ip6addr_ntoa_r((const ip6_addr_t *)(prefix_list[i].prefix.addr), (acIPv6Addr), sizeof(acIPv6Addr));
3769             PRINTK("%-50s ", acIPv6Addr);
3770             PRINTK("%-16s ", netif_get_name(prefix_list[i].netif));
3771             PRINTK("%-20u\n", prefix_list[i].invalidation_timer);
3772         }
3773     }
3774 
3775     if (!atleastOneEntry) {
3776         PRINTK("**** NO VALID PREFIXES FOUND CONFIGURED ****\n");
3777     }
3778     PRINTK("---------------------------------------------------------------------------------\n");
3779 
3780     atleastOneEntry = 0;
3781 
3782     PRINTK("\n\n");
3783     PRINTK("============================\n");
3784     PRINTK("|| Neighbor Cache Entries ||\n");
3785     PRINTK("============================\n");
3786     PRINTK("%-50s %-25s %-16s %-15s %-10s\n", "Neighbor", "MAC", "netif", "state", "IsRouter");
3787     PRINTK("------------------------------------------------------------"
3788            "----------------------------------------------------------\n");
3789 
3790     /* Display neighbour Cache Entry */
3791     for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) {
3792         if (neighbor_cache[i].state != ND6_NO_ENTRY) {
3793             atleastOneEntry = 1;
3794             (void)ip6addr_ntoa_r((const ip6_addr_t *)(neighbor_cache[i].next_hop_address.addr), (acIPv6Addr),
3795                                  sizeof(acIPv6Addr));
3796             PRINTK("%-50s ", acIPv6Addr);
3797 
3798             if (snprintf_s(aclladdr, sizeof(aclladdr), sizeof(aclladdr) - 1, "%02X:%02X:%02X:%02X:%02X:%02X",
3799                            neighbor_cache[i].lladdr[0], neighbor_cache[i].lladdr[1], neighbor_cache[i].lladdr[2],
3800                            neighbor_cache[i].lladdr[3], neighbor_cache[i].lladdr[4], neighbor_cache[i].lladdr[5]) < 0) {
3801                 return LOS_NOK;
3802             }
3803             PRINTK("%-25s ", aclladdr);
3804             PRINTK("%-16s ", netif_get_name(neighbor_cache[i].netif));
3805             PRINTK("%-15s ", acStates[neighbor_cache[i].state]);
3806             PRINTK("%-10s\n", (neighbor_cache[i].isrouter ? "Yes" : "No"));
3807         }
3808     }
3809     if (!atleastOneEntry) {
3810         PRINTK("**** NO NEIGHBOURS FOUND ****\n");
3811     }
3812     PRINTK("------------------------------------------------------------"
3813            "----------------------------------------------------------\n");
3814 
3815     atleastOneEntry = 0;
3816 
3817     PRINTK("\n\n");
3818     PRINTK("===============================\n");
3819     PRINTK("|| Destination Cache Entries ||\n");
3820     PRINTK("===============================\n");
3821     PRINTK("%-50s %-50s %-10s %-10s\n", "Destination", "NextHop", "PMTU", "age");
3822     PRINTK("------------------------------------------------------------"
3823            "--------------------------------------------------------\n");
3824     /* Display destination Cache Entry */
3825     for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) {
3826         if (!ip6_addr_isany(&(destination_cache[i].destination_addr))) {
3827             atleastOneEntry = 1;
3828             (void)ip6addr_ntoa_r((const ip6_addr_t *)(destination_cache[i].destination_addr.addr), (acIPv6Addr),
3829                                  sizeof(acIPv6Addr));
3830             PRINTK("%-50s ", acIPv6Addr);
3831             (void)ip6addr_ntoa_r((const ip6_addr_t *)(destination_cache[i].next_hop_addr.addr), (acIPv6Addr),
3832                                  sizeof(acIPv6Addr));
3833             PRINTK("%-50s ", acIPv6Addr);
3834             PRINTK("%-10u ", destination_cache[i].pmtu);
3835             PRINTK("%-10u\n", destination_cache[i].age);
3836         }
3837     }
3838     if (!atleastOneEntry) {
3839         PRINTK("**** NO DESTINATION CACHE FOUND ****\n");
3840     }
3841     PRINTK("------------------------------------------------------------"
3842            "--------------------------------------------------------\n");
3843 
3844     atleastOneEntry = 0;
3845     PRINTK("\n\n");
3846     PRINTK("============================\n");
3847     PRINTK("|| Default Router Entries ||\n");
3848     PRINTK("============================\n");
3849     PRINTK("%-50s %-20s %-10s\n", "Router", "invalidation_timer", "flags");
3850     PRINTK("-----------------------------------------------------------------------------\n");
3851     /* Display Default Router Cache Entry */
3852     for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) {
3853         if (default_router_list[i].neighbor_entry) {
3854             atleastOneEntry = 1;
3855             (void)ip6addr_ntoa_r((const ip6_addr_t *)((default_router_list[i].neighbor_entry)->next_hop_address.addr),
3856                                  (acIPv6Addr), sizeof(acIPv6Addr));
3857             PRINTK("%-50s ", acIPv6Addr);
3858             PRINTK("%-20u ", default_router_list[i].invalidation_timer);
3859             PRINTK("%-10u\n", default_router_list[i].flags);
3860         }
3861     }
3862     if (!atleastOneEntry) {
3863         PRINTK("**** NO DEFAULT ROUTERS FOUND ****\n");
3864     }
3865     PRINTK("-----------------------------------------------------------------------------\n");
3866 
3867 exit:
3868     return LOS_OK;
3869 }
3870 
3871 #ifdef LOSCFG_SHELL_CMD_DEBUG
3872 SHELLCMD_ENTRY(ipdebug_shellcmd, CMD_TYPE_EX, "ipdebug", XARGS, (CmdCallBackFunc)osShellIpDebug);
3873 #endif
3874 #ifdef LWIP_TESTBED
3875 extern void cmd_reset(void);
3876 
3877 void osShellReboot(int argc, const char **argv)
3878 {
3879     cmd_reset();
3880 }
3881 
3882 #ifdef LOSCFG_SHELL_CMD_DEBUG
3883 SHELLCMD_ENTRY(reboot_shellcmd, CMD_TYPE_EX, "reboot", XARGS, (CmdCallBackFunc)osShellReboot);
3884 #endif /* LOSCFG_SHELL_CMD_DEBUG */
3885 #endif
3886 
3887 #endif //LWIP_ENABLE_LOS_SHELL_CMD
3888