1 #ifndef __UTILS_H__
2 #define __UTILS_H__ 1
3
4 #include <sys/types.h>
5 #include <asm/types.h>
6 #include <resolv.h>
7 #include <stdlib.h>
8 #include <stdbool.h>
9 #include <time.h>
10
11 #include "libnetlink.h"
12 #include "ll_map.h"
13 #include "rtm_map.h"
14
15 extern int preferred_family;
16 extern int human_readable;
17 extern int use_iec;
18 extern int show_stats;
19 extern int show_details;
20 extern int show_raw;
21 extern int resolve_hosts;
22 extern int oneline;
23 extern int brief;
24 extern int json;
25 extern int timestamp;
26 extern int timestamp_short;
27 extern const char * _SL_;
28 extern int max_flush_loops;
29 extern int batch_mode;
30 extern bool do_all;
31
32 #ifndef CONFDIR
33 #define CONFDIR "/etc/iproute2"
34 #endif
35
36 #define SPRINT_BSIZE 64
37 #define SPRINT_BUF(x) char x[SPRINT_BSIZE]
38
39 void incomplete_command(void) __attribute__((noreturn));
40
41 #define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
42 #define NEXT_ARG_OK() (argc - 1 > 0)
43 #define NEXT_ARG_FWD() do { argv++; argc--; } while(0)
44 #define PREV_ARG() do { argv--; argc++; } while(0)
45
46 typedef struct
47 {
48 __u16 flags;
49 __u16 bytelen;
50 __s16 bitlen;
51 /* These next two fields match rtvia */
52 __u16 family;
53 __u32 data[64];
54 } inet_prefix;
55
56 #define PREFIXLEN_SPECIFIED 1
57
58 #define DN_MAXADDL 20
59 #ifndef AF_DECnet
60 #define AF_DECnet 12
61 #endif
62
63 struct dn_naddr
64 {
65 unsigned short a_len;
66 unsigned char a_addr[DN_MAXADDL];
67 };
68
69 #define IPX_NODE_LEN 6
70
71 struct ipx_addr {
72 u_int32_t ipx_net;
73 u_int8_t ipx_node[IPX_NODE_LEN];
74 };
75
76 #ifndef AF_MPLS
77 # define AF_MPLS 28
78 #endif
79 #ifndef IPPROTO_MPLS
80 #define IPPROTO_MPLS 137
81 #endif
82
83 __u32 get_addr32(const char *name);
84 int get_addr_1(inet_prefix *dst, const char *arg, int family);
85 int get_prefix_1(inet_prefix *dst, char *arg, int family);
86 int get_addr(inet_prefix *dst, const char *arg, int family);
87 int get_prefix(inet_prefix *dst, char *arg, int family);
88 int mask2bits(__u32 netmask);
89 int get_addr_ila(__u64 *val, const char *arg);
90
91 int get_hex(char c);
92 int get_integer(int *val, const char *arg, int base);
93 int get_unsigned(unsigned *val, const char *arg, int base);
94 int get_time_rtt(unsigned *val, const char *arg, int *raw);
95 #define get_byte get_u8
96 #define get_ushort get_u16
97 #define get_short get_s16
98 int get_u64(__u64 *val, const char *arg, int base);
99 int get_u32(__u32 *val, const char *arg, int base);
100 int get_s32(__s32 *val, const char *arg, int base);
101 int get_u16(__u16 *val, const char *arg, int base);
102 int get_s16(__s16 *val, const char *arg, int base);
103 int get_u8(__u8 *val, const char *arg, int base);
104 int get_s8(__s8 *val, const char *arg, int base);
105 int get_be64(__be64 *val, const char *arg, int base);
106 int get_be32(__be32 *val, const char *arg, int base);
107 int get_be16(__be16 *val, const char *arg, int base);
108 int get_addr64(__u64 *ap, const char *cp);
109
110 int hex2mem(const char *buf, uint8_t *mem, int count);
111 char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen);
112 __u8 *hexstring_a2n(const char *str, __u8 *buf, int blen, unsigned int *len);
113 #define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx")
114 int addr64_n2a(__u64 addr, char *buff, size_t len);
115
116 int af_bit_len(int af);
117 int af_byte_len(int af);
118
119 const char *format_host_r(int af, int len, const void *addr,
120 char *buf, int buflen);
121 const char *format_host(int af, int lne, const void *addr);
122 #define format_host_rta(af, rta) \
123 format_host(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
124 const char *rt_addr_n2a_r(int af, int len, const void *addr,
125 char *buf, int buflen);
126 const char *rt_addr_n2a(int af, int len, const void *addr);
127 #define rt_addr_n2a_rta(af, rta) \
128 rt_addr_n2a(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
129
130 int read_family(const char *name);
131 const char *family_name(int family);
132
133 void missarg(const char *) __attribute__((noreturn));
134 void invarg(const char *, const char *) __attribute__((noreturn));
135 void duparg(const char *, const char *) __attribute__((noreturn));
136 void duparg2(const char *, const char *) __attribute__((noreturn));
137 int check_ifname(const char *);
138 int get_ifname(char *, const char *);
139 int matches(const char *arg, const char *pattern);
140 int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits);
141
142 const char *dnet_ntop(int af, const void *addr, char *str, size_t len);
143 int dnet_pton(int af, const char *src, void *addr);
144
145 const char *ipx_ntop(int af, const void *addr, char *str, size_t len);
146 int ipx_pton(int af, const char *src, void *addr);
147
148 const char *mpls_ntop(int af, const void *addr, char *str, size_t len);
149 int mpls_pton(int af, const char *src, void *addr, size_t alen);
150
151 extern int __iproute2_hz_internal;
152 int __get_hz(void);
153
get_hz(void)154 static __inline__ int get_hz(void)
155 {
156 if (__iproute2_hz_internal == 0)
157 __iproute2_hz_internal = __get_hz();
158 return __iproute2_hz_internal;
159 }
160
161 extern int __iproute2_user_hz_internal;
162 int __get_user_hz(void);
163
get_user_hz(void)164 static __inline__ int get_user_hz(void)
165 {
166 if (__iproute2_user_hz_internal == 0)
167 __iproute2_user_hz_internal = __get_user_hz();
168 return __iproute2_user_hz_internal;
169 }
170
nl_mgrp(__u32 group)171 static inline __u32 nl_mgrp(__u32 group)
172 {
173 if (group > 31 ) {
174 fprintf(stderr, "Use setsockopt for this group %d\n", group);
175 exit(-1);
176 }
177 return group ? (1 << (group - 1)) : 0;
178 }
179
180 /* courtesy of bridge-utils */
__tv_to_jiffies(const struct timeval * tv)181 static inline unsigned long __tv_to_jiffies(const struct timeval *tv)
182 {
183 unsigned long long jif;
184
185 jif = 1000000ULL * tv->tv_sec + tv->tv_usec;
186
187 return jif/10000;
188 }
189
__jiffies_to_tv(struct timeval * tv,unsigned long jiffies)190 static inline void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
191 {
192 unsigned long long tvusec;
193
194 tvusec = 10000ULL*jiffies;
195 tv->tv_sec = tvusec/1000000;
196 tv->tv_usec = tvusec - 1000000 * tv->tv_sec;
197 }
198
199 void print_escape_buf(const __u8 *buf, size_t len, const char *escape);
200
201 int print_timestamp(FILE *fp);
202 void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n);
203
204 #define BIT(nr) (1UL << (nr))
205
206 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
207
208 #define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
209
210 #ifndef offsetof
211 # define offsetof(type, member) ((size_t) &((type *)0)->member)
212 #endif
213
214 #ifndef min
215 # define min(x, y) ({ \
216 typeof(x) _min1 = (x); \
217 typeof(y) _min2 = (y); \
218 (void) (&_min1 == &_min2); \
219 _min1 < _min2 ? _min1 : _min2; })
220 #endif
221
222 #ifndef __check_format_string
223 # define __check_format_string(pos_str, pos_args) \
224 __attribute__ ((format (printf, (pos_str), (pos_args))))
225 #endif
226
227 #define _textify(x) #x
228 #define textify(x) _textify(x)
229
230 #define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
231 #define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
232
233 extern int cmdlineno;
234 ssize_t getcmdline(char **line, size_t *len, FILE *in);
235 int makeargs(char *line, char *argv[], int maxargs);
236 int inet_get_addr(const char *src, __u32 *dst, struct in6_addr *dst6);
237
238 struct iplink_req {
239 struct nlmsghdr n;
240 struct ifinfomsg i;
241 char buf[1024];
242 };
243
244 int iplink_parse(int argc, char **argv, struct iplink_req *req,
245 char **name, char **type, char **link, char **dev,
246 int *group, int *index);
247
248 int do_each_netns(int (*func)(char *nsname, void *arg), void *arg,
249 bool show_label);
250
251 char *int_to_str(int val, char *buf);
252 int get_guid(__u64 *guid, const char *arg);
253 int get_real_family(int rtm_type, int rtm_family);
254
255 int cmd_exec(const char *cmd, char **argv, bool do_fork);
256 int make_path(const char *path, mode_t mode);
257 char *find_cgroup2_mount(void);
258 int get_command_name(const char *pid, char *comm, size_t len);
259
260 #ifdef NEED_STRLCPY
261 size_t strlcpy(char *dst, const char *src, size_t size);
262 size_t strlcat(char *dst, const char *src, size_t size);
263 #endif
264
265 #endif /* __UTILS_H__ */
266