Lines Matching +full:dout +full:- +full:default +full:- +full:2
1 // SPDX-License-Identifier: GPL-2.0
43 * --------
45 * --------
48 * ----------
50 * ---------- TCP connection)
53 * | ----------------------
56 * |+--------------------------- \
58 * | ----------- \ \
60 * | ----------- await close \ \
65 * | / --------------- | |
67 * | / --------------
68 * | / -----------------| CONNECTING | socket created, TCP
69 * | | / -------------- connect initiated
72 * -------------
74 * -------------
76 * State values for ceph_connection->sock_state; NEW is assumed to be 0.
79 #define CON_SOCK_STATE_NEW 0 /* -> CLOSED */
80 #define CON_SOCK_STATE_CLOSED 1 /* -> CONNECTING */
81 #define CON_SOCK_STATE_CONNECTING 2 /* -> CONNECTED or -> CLOSING */
82 #define CON_SOCK_STATE_CONNECTED 3 /* -> CLOSING or -> CLOSED */
83 #define CON_SOCK_STATE_CLOSING 4 /* -> CLOSED */
88 #define CON_STATE_CLOSED 1 /* -> PREOPEN */
89 #define CON_STATE_PREOPEN 2 /* -> CONNECTING, CLOSED */
90 #define CON_STATE_CONNECTING 3 /* -> NEGOTIATING, CLOSED */
91 #define CON_STATE_NEGOTIATING 4 /* -> OPEN, CLOSED */
92 #define CON_STATE_OPEN 5 /* -> STANDBY, CLOSED */
93 #define CON_STATE_STANDBY 6 /* -> PREOPEN, CLOSED */
101 #define CON_FLAG_WRITE_PENDING 2 /* we have data ready to send */
114 default: in con_flag_valid()
123 clear_bit(con_flag, &con->flags); in con_flag_clear()
130 set_bit(con_flag, &con->flags); in con_flag_set()
137 return test_bit(con_flag, &con->flags); in con_flag_test()
145 return test_and_clear_bit(con_flag, &con->flags); in con_flag_test_and_clear()
153 return test_and_set_bit(con_flag, &con->flags); in con_flag_test_and_set()
156 /* Slab caches for frequently-allocated structures */
181 #define ADDR_STR_COUNT_MASK (ADDR_STR_COUNT - 1)
193 struct sockaddr_storage ss = addr->in_addr; /* align */ in ceph_pr_addr()
203 le32_to_cpu(addr->type), &in4->sin_addr, in ceph_pr_addr()
204 ntohs(in4->sin_port)); in ceph_pr_addr()
209 le32_to_cpu(addr->type), &in6->sin6_addr, in ceph_pr_addr()
210 ntohs(in6->sin6_port)); in ceph_pr_addr()
213 default: in ceph_pr_addr()
224 memcpy(&msgr->my_enc_addr, &msgr->inst.addr, sizeof(msgr->my_enc_addr)); in encode_my_addr()
225 ceph_encode_banner_addr(&msgr->my_enc_addr); in encode_my_addr()
238 return -ENOMEM; in ceph_msgr_slab_init()
267 return -ENOMEM; in ceph_msgr_init()
275 * connections, so leave @max_active at default. in ceph_msgr_init()
277 ceph_msgr_wq = alloc_workqueue("ceph-msgr", WQ_MEM_RECLAIM, 0); in ceph_msgr_init()
284 return -ENOMEM; in ceph_msgr_init()
306 old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CLOSED); in con_sock_state_init()
309 dout("%s con %p sock %d -> %d\n", __func__, con, old_state, in con_sock_state_init()
317 old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CONNECTING); in con_sock_state_connecting()
320 dout("%s con %p sock %d -> %d\n", __func__, con, old_state, in con_sock_state_connecting()
328 old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CONNECTED); in con_sock_state_connected()
331 dout("%s con %p sock %d -> %d\n", __func__, con, old_state, in con_sock_state_connected()
339 old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CLOSING); in con_sock_state_closing()
344 dout("%s con %p sock %d -> %d\n", __func__, con, old_state, in con_sock_state_closing()
352 old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CLOSED); in con_sock_state_closed()
358 dout("%s con %p sock %d -> %d\n", __func__, con, old_state, in con_sock_state_closed()
369 struct ceph_connection *con = sk->sk_user_data; in ceph_sock_data_ready()
370 if (atomic_read(&con->msgr->stopping)) { in ceph_sock_data_ready()
374 if (sk->sk_state != TCP_CLOSE_WAIT) { in ceph_sock_data_ready()
375 dout("%s on %p state = %lu, queueing work\n", __func__, in ceph_sock_data_ready()
376 con, con->state); in ceph_sock_data_ready()
384 struct ceph_connection *con = sk->sk_user_data; in ceph_sock_write_space()
395 dout("%s %p queueing write work\n", __func__, con); in ceph_sock_write_space()
396 clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in ceph_sock_write_space()
400 dout("%s %p nothing to write\n", __func__, con); in ceph_sock_write_space()
407 struct ceph_connection *con = sk->sk_user_data; in ceph_sock_state_change()
409 dout("%s %p state = %lu sk_state = %u\n", __func__, in ceph_sock_state_change()
410 con, con->state, sk->sk_state); in ceph_sock_state_change()
412 switch (sk->sk_state) { in ceph_sock_state_change()
414 dout("%s TCP_CLOSE\n", __func__); in ceph_sock_state_change()
417 dout("%s TCP_CLOSE_WAIT\n", __func__); in ceph_sock_state_change()
423 dout("%s TCP_ESTABLISHED\n", __func__); in ceph_sock_state_change()
427 default: /* Everything else is uninteresting */ in ceph_sock_state_change()
438 struct sock *sk = sock->sk; in set_sock_callbacks()
439 sk->sk_user_data = con; in set_sock_callbacks()
440 sk->sk_data_ready = ceph_sock_data_ready; in set_sock_callbacks()
441 sk->sk_write_space = ceph_sock_write_space; in set_sock_callbacks()
442 sk->sk_state_change = ceph_sock_state_change; in set_sock_callbacks()
455 struct sockaddr_storage ss = con->peer_addr.in_addr; /* align */ in ceph_tcp_connect()
460 BUG_ON(con->sock); in ceph_tcp_connect()
464 ret = sock_create_kern(read_pnet(&con->msgr->net), ss.ss_family, in ceph_tcp_connect()
469 sock->sk->sk_allocation = GFP_NOFS; in ceph_tcp_connect()
472 lockdep_set_class(&sock->sk->sk_lock, &socket_class); in ceph_tcp_connect()
477 dout("connect %s\n", ceph_pr_addr(&con->peer_addr)); in ceph_tcp_connect()
482 if (ret == -EINPROGRESS) { in ceph_tcp_connect()
483 dout("connect %s EINPROGRESS sk_state = %u\n", in ceph_tcp_connect()
484 ceph_pr_addr(&con->peer_addr), in ceph_tcp_connect()
485 sock->sk->sk_state); in ceph_tcp_connect()
488 ceph_pr_addr(&con->peer_addr), ret); in ceph_tcp_connect()
493 if (ceph_test_opt(from_msgr(con->msgr), TCP_NODELAY)) in ceph_tcp_connect()
494 tcp_sock_set_nodelay(sock->sk); in ceph_tcp_connect()
496 con->sock = sock; in ceph_tcp_connect()
514 if (r == -EAGAIN) in ceph_tcp_recvmsg()
533 if (r == -EAGAIN) in ceph_tcp_recvpage()
554 if (r == -EAGAIN) in ceph_tcp_sendmsg()
579 sendpage = sock->ops->sendpage; in ceph_tcp_sendpage()
584 if (ret == -EAGAIN) in ceph_tcp_sendpage()
597 dout("con_close_socket on %p sock %p\n", con, con->sock); in con_close_socket()
598 if (con->sock) { in con_close_socket()
599 rc = con->sock->ops->shutdown(con->sock, SHUT_RDWR); in con_close_socket()
600 sock_release(con->sock); in con_close_socket()
601 con->sock = NULL; in con_close_socket()
622 list_del_init(&msg->list_head); in ceph_msg_remove()
639 dout("reset_connection %p\n", con); in reset_connection()
640 ceph_msg_remove_list(&con->out_queue); in reset_connection()
641 ceph_msg_remove_list(&con->out_sent); in reset_connection()
643 if (con->in_msg) { in reset_connection()
644 BUG_ON(con->in_msg->con != con); in reset_connection()
645 ceph_msg_put(con->in_msg); in reset_connection()
646 con->in_msg = NULL; in reset_connection()
649 con->connect_seq = 0; in reset_connection()
650 con->out_seq = 0; in reset_connection()
651 if (con->out_msg) { in reset_connection()
652 BUG_ON(con->out_msg->con != con); in reset_connection()
653 ceph_msg_put(con->out_msg); in reset_connection()
654 con->out_msg = NULL; in reset_connection()
656 con->in_seq = 0; in reset_connection()
657 con->in_seq_acked = 0; in reset_connection()
659 con->out_skip = 0; in reset_connection()
667 mutex_lock(&con->mutex); in ceph_con_close()
668 dout("con_close %p peer %s\n", con, ceph_pr_addr(&con->peer_addr)); in ceph_con_close()
669 con->state = CON_STATE_CLOSED; in ceph_con_close()
677 con->peer_global_seq = 0; in ceph_con_close()
680 mutex_unlock(&con->mutex); in ceph_con_close()
691 mutex_lock(&con->mutex); in ceph_con_open()
692 dout("con_open %p %s\n", con, ceph_pr_addr(addr)); in ceph_con_open()
694 WARN_ON(con->state != CON_STATE_CLOSED); in ceph_con_open()
695 con->state = CON_STATE_PREOPEN; in ceph_con_open()
697 con->peer_name.type = (__u8) entity_type; in ceph_con_open()
698 con->peer_name.num = cpu_to_le64(entity_num); in ceph_con_open()
700 memcpy(&con->peer_addr, addr, sizeof(*addr)); in ceph_con_open()
701 con->delay = 0; /* reset backoff memory */ in ceph_con_open()
702 mutex_unlock(&con->mutex); in ceph_con_open()
712 return con->connect_seq > 0; in ceph_con_opened()
722 dout("con_init %p\n", con); in ceph_con_init()
724 con->private = private; in ceph_con_init()
725 con->ops = ops; in ceph_con_init()
726 con->msgr = msgr; in ceph_con_init()
730 mutex_init(&con->mutex); in ceph_con_init()
731 INIT_LIST_HEAD(&con->out_queue); in ceph_con_init()
732 INIT_LIST_HEAD(&con->out_sent); in ceph_con_init()
733 INIT_DELAYED_WORK(&con->work, ceph_con_workfn); in ceph_con_init()
735 con->state = CON_STATE_CLOSED; in ceph_con_init()
748 spin_lock(&msgr->global_seq_lock); in get_global_seq()
749 if (msgr->global_seq < gt) in get_global_seq()
750 msgr->global_seq = gt; in get_global_seq()
751 ret = ++msgr->global_seq; in get_global_seq()
752 spin_unlock(&msgr->global_seq_lock); in get_global_seq()
758 BUG_ON(con->out_skip); in con_out_kvec_reset()
760 con->out_kvec_left = 0; in con_out_kvec_reset()
761 con->out_kvec_bytes = 0; in con_out_kvec_reset()
762 con->out_kvec_cur = &con->out_kvec[0]; in con_out_kvec_reset()
768 int index = con->out_kvec_left; in con_out_kvec_add()
770 BUG_ON(con->out_skip); in con_out_kvec_add()
771 BUG_ON(index >= ARRAY_SIZE(con->out_kvec)); in con_out_kvec_add()
773 con->out_kvec[index].iov_len = size; in con_out_kvec_add()
774 con->out_kvec[index].iov_base = data; in con_out_kvec_add()
775 con->out_kvec_left++; in con_out_kvec_add()
776 con->out_kvec_bytes += size; in con_out_kvec_add()
786 int off = con->out_kvec_cur - con->out_kvec; in con_out_kvec_skip()
789 if (con->out_kvec_bytes > 0) { in con_out_kvec_skip()
790 skip = con->out_kvec[off + con->out_kvec_left - 1].iov_len; in con_out_kvec_skip()
791 BUG_ON(con->out_kvec_bytes < skip); in con_out_kvec_skip()
792 BUG_ON(!con->out_kvec_left); in con_out_kvec_skip()
793 con->out_kvec_bytes -= skip; in con_out_kvec_skip()
794 con->out_kvec_left--; in con_out_kvec_skip()
810 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_bio_cursor_init()
811 struct ceph_bio_iter *it = &cursor->bio_iter; in ceph_msg_data_bio_cursor_init()
813 cursor->resid = min_t(size_t, length, data->bio_length); in ceph_msg_data_bio_cursor_init()
814 *it = data->bio_pos; in ceph_msg_data_bio_cursor_init()
815 if (cursor->resid < it->iter.bi_size) in ceph_msg_data_bio_cursor_init()
816 it->iter.bi_size = cursor->resid; in ceph_msg_data_bio_cursor_init()
818 BUG_ON(cursor->resid < bio_iter_len(it->bio, it->iter)); in ceph_msg_data_bio_cursor_init()
819 cursor->last_piece = cursor->resid == bio_iter_len(it->bio, it->iter); in ceph_msg_data_bio_cursor_init()
826 struct bio_vec bv = bio_iter_iovec(cursor->bio_iter.bio, in ceph_msg_data_bio_next()
827 cursor->bio_iter.iter); in ceph_msg_data_bio_next()
837 struct ceph_bio_iter *it = &cursor->bio_iter; in ceph_msg_data_bio_advance()
838 struct page *page = bio_iter_page(it->bio, it->iter); in ceph_msg_data_bio_advance()
840 BUG_ON(bytes > cursor->resid); in ceph_msg_data_bio_advance()
841 BUG_ON(bytes > bio_iter_len(it->bio, it->iter)); in ceph_msg_data_bio_advance()
842 cursor->resid -= bytes; in ceph_msg_data_bio_advance()
843 bio_advance_iter(it->bio, &it->iter, bytes); in ceph_msg_data_bio_advance()
845 if (!cursor->resid) { in ceph_msg_data_bio_advance()
846 BUG_ON(!cursor->last_piece); in ceph_msg_data_bio_advance()
850 if (!bytes || (it->iter.bi_size && it->iter.bi_bvec_done && in ceph_msg_data_bio_advance()
851 page == bio_iter_page(it->bio, it->iter))) in ceph_msg_data_bio_advance()
854 if (!it->iter.bi_size) { in ceph_msg_data_bio_advance()
855 it->bio = it->bio->bi_next; in ceph_msg_data_bio_advance()
856 it->iter = it->bio->bi_iter; in ceph_msg_data_bio_advance()
857 if (cursor->resid < it->iter.bi_size) in ceph_msg_data_bio_advance()
858 it->iter.bi_size = cursor->resid; in ceph_msg_data_bio_advance()
861 BUG_ON(cursor->last_piece); in ceph_msg_data_bio_advance()
862 BUG_ON(cursor->resid < bio_iter_len(it->bio, it->iter)); in ceph_msg_data_bio_advance()
863 cursor->last_piece = cursor->resid == bio_iter_len(it->bio, it->iter); in ceph_msg_data_bio_advance()
871 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_bvecs_cursor_init()
872 struct bio_vec *bvecs = data->bvec_pos.bvecs; in ceph_msg_data_bvecs_cursor_init()
874 cursor->resid = min_t(size_t, length, data->bvec_pos.iter.bi_size); in ceph_msg_data_bvecs_cursor_init()
875 cursor->bvec_iter = data->bvec_pos.iter; in ceph_msg_data_bvecs_cursor_init()
876 cursor->bvec_iter.bi_size = cursor->resid; in ceph_msg_data_bvecs_cursor_init()
878 BUG_ON(cursor->resid < bvec_iter_len(bvecs, cursor->bvec_iter)); in ceph_msg_data_bvecs_cursor_init()
879 cursor->last_piece = in ceph_msg_data_bvecs_cursor_init()
880 cursor->resid == bvec_iter_len(bvecs, cursor->bvec_iter); in ceph_msg_data_bvecs_cursor_init()
887 struct bio_vec bv = bvec_iter_bvec(cursor->data->bvec_pos.bvecs, in ceph_msg_data_bvecs_next()
888 cursor->bvec_iter); in ceph_msg_data_bvecs_next()
898 struct bio_vec *bvecs = cursor->data->bvec_pos.bvecs; in ceph_msg_data_bvecs_advance()
899 struct page *page = bvec_iter_page(bvecs, cursor->bvec_iter); in ceph_msg_data_bvecs_advance()
901 BUG_ON(bytes > cursor->resid); in ceph_msg_data_bvecs_advance()
902 BUG_ON(bytes > bvec_iter_len(bvecs, cursor->bvec_iter)); in ceph_msg_data_bvecs_advance()
903 cursor->resid -= bytes; in ceph_msg_data_bvecs_advance()
904 bvec_iter_advance(bvecs, &cursor->bvec_iter, bytes); in ceph_msg_data_bvecs_advance()
906 if (!cursor->resid) { in ceph_msg_data_bvecs_advance()
907 BUG_ON(!cursor->last_piece); in ceph_msg_data_bvecs_advance()
911 if (!bytes || (cursor->bvec_iter.bi_bvec_done && in ceph_msg_data_bvecs_advance()
912 page == bvec_iter_page(bvecs, cursor->bvec_iter))) in ceph_msg_data_bvecs_advance()
915 BUG_ON(cursor->last_piece); in ceph_msg_data_bvecs_advance()
916 BUG_ON(cursor->resid < bvec_iter_len(bvecs, cursor->bvec_iter)); in ceph_msg_data_bvecs_advance()
917 cursor->last_piece = in ceph_msg_data_bvecs_advance()
918 cursor->resid == bvec_iter_len(bvecs, cursor->bvec_iter); in ceph_msg_data_bvecs_advance()
929 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_pages_cursor_init()
932 BUG_ON(data->type != CEPH_MSG_DATA_PAGES); in ceph_msg_data_pages_cursor_init()
934 BUG_ON(!data->pages); in ceph_msg_data_pages_cursor_init()
935 BUG_ON(!data->length); in ceph_msg_data_pages_cursor_init()
937 cursor->resid = min(length, data->length); in ceph_msg_data_pages_cursor_init()
938 page_count = calc_pages_for(data->alignment, (u64)data->length); in ceph_msg_data_pages_cursor_init()
939 cursor->page_offset = data->alignment & ~PAGE_MASK; in ceph_msg_data_pages_cursor_init()
940 cursor->page_index = 0; in ceph_msg_data_pages_cursor_init()
942 cursor->page_count = (unsigned short)page_count; in ceph_msg_data_pages_cursor_init()
943 BUG_ON(length > SIZE_MAX - cursor->page_offset); in ceph_msg_data_pages_cursor_init()
944 cursor->last_piece = cursor->page_offset + cursor->resid <= PAGE_SIZE; in ceph_msg_data_pages_cursor_init()
951 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_pages_next()
953 BUG_ON(data->type != CEPH_MSG_DATA_PAGES); in ceph_msg_data_pages_next()
955 BUG_ON(cursor->page_index >= cursor->page_count); in ceph_msg_data_pages_next()
956 BUG_ON(cursor->page_offset >= PAGE_SIZE); in ceph_msg_data_pages_next()
958 *page_offset = cursor->page_offset; in ceph_msg_data_pages_next()
959 if (cursor->last_piece) in ceph_msg_data_pages_next()
960 *length = cursor->resid; in ceph_msg_data_pages_next()
962 *length = PAGE_SIZE - *page_offset; in ceph_msg_data_pages_next()
964 return data->pages[cursor->page_index]; in ceph_msg_data_pages_next()
970 BUG_ON(cursor->data->type != CEPH_MSG_DATA_PAGES); in ceph_msg_data_pages_advance()
972 BUG_ON(cursor->page_offset + bytes > PAGE_SIZE); in ceph_msg_data_pages_advance()
976 cursor->resid -= bytes; in ceph_msg_data_pages_advance()
977 cursor->page_offset = (cursor->page_offset + bytes) & ~PAGE_MASK; in ceph_msg_data_pages_advance()
978 if (!bytes || cursor->page_offset) in ceph_msg_data_pages_advance()
981 if (!cursor->resid) in ceph_msg_data_pages_advance()
986 BUG_ON(cursor->page_index >= cursor->page_count); in ceph_msg_data_pages_advance()
987 cursor->page_index++; in ceph_msg_data_pages_advance()
988 cursor->last_piece = cursor->resid <= PAGE_SIZE; in ceph_msg_data_pages_advance()
1001 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_pagelist_cursor_init()
1005 BUG_ON(data->type != CEPH_MSG_DATA_PAGELIST); in ceph_msg_data_pagelist_cursor_init()
1007 pagelist = data->pagelist; in ceph_msg_data_pagelist_cursor_init()
1013 BUG_ON(list_empty(&pagelist->head)); in ceph_msg_data_pagelist_cursor_init()
1014 page = list_first_entry(&pagelist->head, struct page, lru); in ceph_msg_data_pagelist_cursor_init()
1016 cursor->resid = min(length, pagelist->length); in ceph_msg_data_pagelist_cursor_init()
1017 cursor->page = page; in ceph_msg_data_pagelist_cursor_init()
1018 cursor->offset = 0; in ceph_msg_data_pagelist_cursor_init()
1019 cursor->last_piece = cursor->resid <= PAGE_SIZE; in ceph_msg_data_pagelist_cursor_init()
1026 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_pagelist_next()
1029 BUG_ON(data->type != CEPH_MSG_DATA_PAGELIST); in ceph_msg_data_pagelist_next()
1031 pagelist = data->pagelist; in ceph_msg_data_pagelist_next()
1034 BUG_ON(!cursor->page); in ceph_msg_data_pagelist_next()
1035 BUG_ON(cursor->offset + cursor->resid != pagelist->length); in ceph_msg_data_pagelist_next()
1038 *page_offset = cursor->offset & ~PAGE_MASK; in ceph_msg_data_pagelist_next()
1039 if (cursor->last_piece) in ceph_msg_data_pagelist_next()
1040 *length = cursor->resid; in ceph_msg_data_pagelist_next()
1042 *length = PAGE_SIZE - *page_offset; in ceph_msg_data_pagelist_next()
1044 return cursor->page; in ceph_msg_data_pagelist_next()
1050 struct ceph_msg_data *data = cursor->data; in ceph_msg_data_pagelist_advance()
1053 BUG_ON(data->type != CEPH_MSG_DATA_PAGELIST); in ceph_msg_data_pagelist_advance()
1055 pagelist = data->pagelist; in ceph_msg_data_pagelist_advance()
1058 BUG_ON(cursor->offset + cursor->resid != pagelist->length); in ceph_msg_data_pagelist_advance()
1059 BUG_ON((cursor->offset & ~PAGE_MASK) + bytes > PAGE_SIZE); in ceph_msg_data_pagelist_advance()
1063 cursor->resid -= bytes; in ceph_msg_data_pagelist_advance()
1064 cursor->offset += bytes; in ceph_msg_data_pagelist_advance()
1066 if (!bytes || cursor->offset & ~PAGE_MASK) in ceph_msg_data_pagelist_advance()
1069 if (!cursor->resid) in ceph_msg_data_pagelist_advance()
1074 BUG_ON(list_is_last(&cursor->page->lru, &pagelist->head)); in ceph_msg_data_pagelist_advance()
1075 cursor->page = list_next_entry(cursor->page, lru); in ceph_msg_data_pagelist_advance()
1076 cursor->last_piece = cursor->resid <= PAGE_SIZE; in ceph_msg_data_pagelist_advance()
1091 size_t length = cursor->total_resid; in __ceph_msg_data_cursor_init()
1093 switch (cursor->data->type) { in __ceph_msg_data_cursor_init()
1109 default: in __ceph_msg_data_cursor_init()
1113 cursor->need_crc = true; in __ceph_msg_data_cursor_init()
1118 struct ceph_msg_data_cursor *cursor = &msg->cursor; in ceph_msg_data_cursor_init()
1121 BUG_ON(length > msg->data_length); in ceph_msg_data_cursor_init()
1122 BUG_ON(!msg->num_data_items); in ceph_msg_data_cursor_init()
1124 cursor->total_resid = length; in ceph_msg_data_cursor_init()
1125 cursor->data = msg->data; in ceph_msg_data_cursor_init()
1141 switch (cursor->data->type) { in ceph_msg_data_next()
1157 default: in ceph_msg_data_next()
1165 BUG_ON(*length > cursor->resid); in ceph_msg_data_next()
1167 *last_piece = cursor->last_piece; in ceph_msg_data_next()
1181 BUG_ON(bytes > cursor->resid); in ceph_msg_data_advance()
1182 switch (cursor->data->type) { in ceph_msg_data_advance()
1198 default: in ceph_msg_data_advance()
1202 cursor->total_resid -= bytes; in ceph_msg_data_advance()
1204 if (!cursor->resid && cursor->total_resid) { in ceph_msg_data_advance()
1205 WARN_ON(!cursor->last_piece); in ceph_msg_data_advance()
1206 cursor->data++; in ceph_msg_data_advance()
1210 cursor->need_crc = new_piece; in ceph_msg_data_advance()
1215 return (con->peer_features & CEPH_FEATURE_MSG_AUTH) ? in sizeof_footer()
1233 struct ceph_msg *m = con->out_msg; in prepare_write_message_footer()
1235 m->footer.flags |= CEPH_MSG_FOOTER_COMPLETE; in prepare_write_message_footer()
1237 dout("prepare_write_message_footer %p\n", con); in prepare_write_message_footer()
1238 con_out_kvec_add(con, sizeof_footer(con), &m->footer); in prepare_write_message_footer()
1239 if (con->peer_features & CEPH_FEATURE_MSG_AUTH) { in prepare_write_message_footer()
1240 if (con->ops->sign_message) in prepare_write_message_footer()
1241 con->ops->sign_message(m); in prepare_write_message_footer()
1243 m->footer.sig = 0; in prepare_write_message_footer()
1245 m->old_footer.flags = m->footer.flags; in prepare_write_message_footer()
1247 con->out_more = m->more_to_follow; in prepare_write_message_footer()
1248 con->out_msg_done = true; in prepare_write_message_footer()
1260 con->out_msg_done = false; in prepare_write_message()
1264 if (con->in_seq > con->in_seq_acked) { in prepare_write_message()
1265 con->in_seq_acked = con->in_seq; in prepare_write_message()
1267 con->out_temp_ack = cpu_to_le64(con->in_seq_acked); in prepare_write_message()
1268 con_out_kvec_add(con, sizeof (con->out_temp_ack), in prepare_write_message()
1269 &con->out_temp_ack); in prepare_write_message()
1272 BUG_ON(list_empty(&con->out_queue)); in prepare_write_message()
1273 m = list_first_entry(&con->out_queue, struct ceph_msg, list_head); in prepare_write_message()
1274 con->out_msg = m; in prepare_write_message()
1275 BUG_ON(m->con != con); in prepare_write_message()
1279 list_move_tail(&m->list_head, &con->out_sent); in prepare_write_message()
1285 if (m->needs_out_seq) { in prepare_write_message()
1286 m->hdr.seq = cpu_to_le64(++con->out_seq); in prepare_write_message()
1287 m->needs_out_seq = false; in prepare_write_message()
1289 if (con->ops->reencode_message) in prepare_write_message()
1290 con->ops->reencode_message(m); in prepare_write_message()
1293 dout("prepare_write_message %p seq %lld type %d len %d+%d+%zd\n", in prepare_write_message()
1294 m, con->out_seq, le16_to_cpu(m->hdr.type), in prepare_write_message()
1295 le32_to_cpu(m->hdr.front_len), le32_to_cpu(m->hdr.middle_len), in prepare_write_message()
1296 m->data_length); in prepare_write_message()
1297 WARN_ON(m->front.iov_len != le32_to_cpu(m->hdr.front_len)); in prepare_write_message()
1298 WARN_ON(m->data_length != le32_to_cpu(m->hdr.data_len)); in prepare_write_message()
1302 con_out_kvec_add(con, sizeof(con->out_hdr), &con->out_hdr); in prepare_write_message()
1303 con_out_kvec_add(con, m->front.iov_len, m->front.iov_base); in prepare_write_message()
1305 if (m->middle) in prepare_write_message()
1306 con_out_kvec_add(con, m->middle->vec.iov_len, in prepare_write_message()
1307 m->middle->vec.iov_base); in prepare_write_message()
1310 crc = crc32c(0, &m->hdr, offsetof(struct ceph_msg_header, crc)); in prepare_write_message()
1311 con->out_msg->hdr.crc = cpu_to_le32(crc); in prepare_write_message()
1312 memcpy(&con->out_hdr, &con->out_msg->hdr, sizeof(con->out_hdr)); in prepare_write_message()
1315 crc = crc32c(0, m->front.iov_base, m->front.iov_len); in prepare_write_message()
1316 con->out_msg->footer.front_crc = cpu_to_le32(crc); in prepare_write_message()
1317 if (m->middle) { in prepare_write_message()
1318 crc = crc32c(0, m->middle->vec.iov_base, in prepare_write_message()
1319 m->middle->vec.iov_len); in prepare_write_message()
1320 con->out_msg->footer.middle_crc = cpu_to_le32(crc); in prepare_write_message()
1322 con->out_msg->footer.middle_crc = 0; in prepare_write_message()
1323 dout("%s front_crc %u middle_crc %u\n", __func__, in prepare_write_message()
1324 le32_to_cpu(con->out_msg->footer.front_crc), in prepare_write_message()
1325 le32_to_cpu(con->out_msg->footer.middle_crc)); in prepare_write_message()
1326 con->out_msg->footer.flags = 0; in prepare_write_message()
1329 con->out_msg->footer.data_crc = 0; in prepare_write_message()
1330 if (m->data_length) { in prepare_write_message()
1331 prepare_message_data(con->out_msg, m->data_length); in prepare_write_message()
1332 con->out_more = 1; /* data + footer will follow */ in prepare_write_message()
1346 dout("prepare_write_ack %p %llu -> %llu\n", con, in prepare_write_ack()
1347 con->in_seq_acked, con->in_seq); in prepare_write_ack()
1348 con->in_seq_acked = con->in_seq; in prepare_write_ack()
1354 con->out_temp_ack = cpu_to_le64(con->in_seq_acked); in prepare_write_ack()
1355 con_out_kvec_add(con, sizeof (con->out_temp_ack), in prepare_write_ack()
1356 &con->out_temp_ack); in prepare_write_ack()
1358 con->out_more = 1; /* more will follow.. eventually.. */ in prepare_write_ack()
1367 dout("prepare_write_seq %p %llu -> %llu\n", con, in prepare_write_seq()
1368 con->in_seq_acked, con->in_seq); in prepare_write_seq()
1369 con->in_seq_acked = con->in_seq; in prepare_write_seq()
1373 con->out_temp_ack = cpu_to_le64(con->in_seq_acked); in prepare_write_seq()
1374 con_out_kvec_add(con, sizeof (con->out_temp_ack), in prepare_write_seq()
1375 &con->out_temp_ack); in prepare_write_seq()
1385 dout("prepare_write_keepalive %p\n", con); in prepare_write_keepalive()
1387 if (con->peer_features & CEPH_FEATURE_MSGR_KEEPALIVE2) { in prepare_write_keepalive()
1392 ceph_encode_timespec64(&con->out_temp_keepalive2, &now); in prepare_write_keepalive()
1393 con_out_kvec_add(con, sizeof(con->out_temp_keepalive2), in prepare_write_keepalive()
1394 &con->out_temp_keepalive2); in prepare_write_keepalive()
1410 if (!con->ops->get_authorizer) { in get_connect_authorizer()
1411 con->auth = NULL; in get_connect_authorizer()
1412 con->out_connect.authorizer_protocol = CEPH_AUTH_UNKNOWN; in get_connect_authorizer()
1413 con->out_connect.authorizer_len = 0; in get_connect_authorizer()
1417 auth = con->ops->get_authorizer(con, &auth_proto, con->auth_retry); in get_connect_authorizer()
1421 con->auth = auth; in get_connect_authorizer()
1422 con->out_connect.authorizer_protocol = cpu_to_le32(auth_proto); in get_connect_authorizer()
1423 con->out_connect.authorizer_len = cpu_to_le32(auth->authorizer_buf_len); in get_connect_authorizer()
1433 con_out_kvec_add(con, sizeof (con->msgr->my_enc_addr), in prepare_write_banner()
1434 &con->msgr->my_enc_addr); in prepare_write_banner()
1436 con->out_more = 0; in prepare_write_banner()
1442 con_out_kvec_add(con, sizeof(con->out_connect), &con->out_connect); in __prepare_write_connect()
1443 if (con->auth) in __prepare_write_connect()
1444 con_out_kvec_add(con, con->auth->authorizer_buf_len, in __prepare_write_connect()
1445 con->auth->authorizer_buf); in __prepare_write_connect()
1447 con->out_more = 0; in __prepare_write_connect()
1453 unsigned int global_seq = get_global_seq(con->msgr, 0); in prepare_write_connect()
1457 switch (con->peer_name.type) { in prepare_write_connect()
1467 default: in prepare_write_connect()
1471 dout("prepare_write_connect %p cseq=%d gseq=%d proto=%d\n", con, in prepare_write_connect()
1472 con->connect_seq, global_seq, proto); in prepare_write_connect()
1474 con->out_connect.features = in prepare_write_connect()
1475 cpu_to_le64(from_msgr(con->msgr)->supported_features); in prepare_write_connect()
1476 con->out_connect.host_type = cpu_to_le32(CEPH_ENTITY_TYPE_CLIENT); in prepare_write_connect()
1477 con->out_connect.connect_seq = cpu_to_le32(con->connect_seq); in prepare_write_connect()
1478 con->out_connect.global_seq = cpu_to_le32(global_seq); in prepare_write_connect()
1479 con->out_connect.protocol_version = cpu_to_le32(proto); in prepare_write_connect()
1480 con->out_connect.flags = 0; in prepare_write_connect()
1492 * 1 -> done
1493 * 0 -> socket full, but more to do
1494 * <0 -> error
1500 dout("write_partial_kvec %p %d left\n", con, con->out_kvec_bytes); in write_partial_kvec()
1501 while (con->out_kvec_bytes > 0) { in write_partial_kvec()
1502 ret = ceph_tcp_sendmsg(con->sock, con->out_kvec_cur, in write_partial_kvec()
1503 con->out_kvec_left, con->out_kvec_bytes, in write_partial_kvec()
1504 con->out_more); in write_partial_kvec()
1507 con->out_kvec_bytes -= ret; in write_partial_kvec()
1508 if (con->out_kvec_bytes == 0) in write_partial_kvec()
1512 while (ret >= con->out_kvec_cur->iov_len) { in write_partial_kvec()
1513 BUG_ON(!con->out_kvec_left); in write_partial_kvec()
1514 ret -= con->out_kvec_cur->iov_len; in write_partial_kvec()
1515 con->out_kvec_cur++; in write_partial_kvec()
1516 con->out_kvec_left--; in write_partial_kvec()
1518 /* and for a partially-consumed entry */ in write_partial_kvec()
1520 con->out_kvec_cur->iov_len -= ret; in write_partial_kvec()
1521 con->out_kvec_cur->iov_base += ret; in write_partial_kvec()
1524 con->out_kvec_left = 0; in write_partial_kvec()
1527 dout("write_partial_kvec %p %d left in %d kvecs ret = %d\n", con, in write_partial_kvec()
1528 con->out_kvec_bytes, con->out_kvec_left, ret); in write_partial_kvec()
1548 * 1 -> done, footer is now queued in out_kvec[].
1549 * 0 -> socket full, but more to do
1550 * <0 -> error
1554 struct ceph_msg *msg = con->out_msg; in write_partial_message_data()
1555 struct ceph_msg_data_cursor *cursor = &msg->cursor; in write_partial_message_data()
1556 bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); in write_partial_message_data()
1560 dout("%s %p msg %p\n", __func__, con, msg); in write_partial_message_data()
1562 if (!msg->num_data_items) in write_partial_message_data()
1563 return -EINVAL; in write_partial_message_data()
1569 * If we are calculating the data crc (the default), we will in write_partial_message_data()
1573 crc = do_datacrc ? le32_to_cpu(msg->footer.data_crc) : 0; in write_partial_message_data()
1574 while (cursor->total_resid) { in write_partial_message_data()
1580 if (!cursor->resid) { in write_partial_message_data()
1586 if (length == cursor->total_resid) in write_partial_message_data()
1588 ret = ceph_tcp_sendpage(con->sock, page, page_offset, length, in write_partial_message_data()
1592 msg->footer.data_crc = cpu_to_le32(crc); in write_partial_message_data()
1596 if (do_datacrc && cursor->need_crc) in write_partial_message_data()
1601 dout("%s %p msg %p done\n", __func__, con, msg); in write_partial_message_data()
1605 msg->footer.data_crc = cpu_to_le32(crc); in write_partial_message_data()
1607 msg->footer.flags |= CEPH_MSG_FOOTER_NOCRC; in write_partial_message_data()
1622 dout("%s %p %d left\n", __func__, con, con->out_skip); in write_partial_skip()
1623 while (con->out_skip > 0) { in write_partial_skip()
1624 size_t size = min(con->out_skip, (int) PAGE_SIZE); in write_partial_skip()
1626 if (size == con->out_skip) in write_partial_skip()
1628 ret = ceph_tcp_sendpage(con->sock, zero_page, 0, size, more); in write_partial_skip()
1631 con->out_skip -= ret; in write_partial_skip()
1643 dout("prepare_read_banner %p\n", con); in prepare_read_banner()
1644 con->in_base_pos = 0; in prepare_read_banner()
1649 dout("prepare_read_connect %p\n", con); in prepare_read_connect()
1650 con->in_base_pos = 0; in prepare_read_connect()
1655 dout("prepare_read_ack %p\n", con); in prepare_read_ack()
1656 con->in_base_pos = 0; in prepare_read_ack()
1661 dout("prepare_read_seq %p\n", con); in prepare_read_seq()
1662 con->in_base_pos = 0; in prepare_read_seq()
1663 con->in_tag = CEPH_MSGR_TAG_SEQ; in prepare_read_seq()
1668 dout("prepare_read_tag %p\n", con); in prepare_read_tag()
1669 con->in_base_pos = 0; in prepare_read_tag()
1670 con->in_tag = CEPH_MSGR_TAG_READY; in prepare_read_tag()
1675 dout("prepare_read_keepalive_ack %p\n", con); in prepare_read_keepalive_ack()
1676 con->in_base_pos = 0; in prepare_read_keepalive_ack()
1684 dout("prepare_read_message %p\n", con); in prepare_read_message()
1685 BUG_ON(con->in_msg != NULL); in prepare_read_message()
1686 con->in_base_pos = 0; in prepare_read_message()
1687 con->in_front_crc = con->in_middle_crc = con->in_data_crc = 0; in prepare_read_message()
1695 while (con->in_base_pos < end) { in read_partial()
1696 int left = end - con->in_base_pos; in read_partial()
1697 int have = size - left; in read_partial()
1698 int ret = ceph_tcp_recvmsg(con->sock, object + have, left); in read_partial()
1701 con->in_base_pos += ret; in read_partial()
1708 * Read all or part of the connect-side handshake on a new connection
1716 dout("read_partial_banner %p at %d\n", con, con->in_base_pos); in read_partial_banner()
1721 ret = read_partial(con, end, size, con->in_banner); in read_partial_banner()
1725 size = sizeof (con->actual_peer_addr); in read_partial_banner()
1727 ret = read_partial(con, end, size, &con->actual_peer_addr); in read_partial_banner()
1730 ceph_decode_banner_addr(&con->actual_peer_addr); in read_partial_banner()
1732 size = sizeof (con->peer_addr_for_me); in read_partial_banner()
1734 ret = read_partial(con, end, size, &con->peer_addr_for_me); in read_partial_banner()
1737 ceph_decode_banner_addr(&con->peer_addr_for_me); in read_partial_banner()
1749 dout("read_partial_connect %p at %d\n", con, con->in_base_pos); in read_partial_connect()
1751 size = sizeof (con->in_reply); in read_partial_connect()
1753 ret = read_partial(con, end, size, &con->in_reply); in read_partial_connect()
1757 if (con->auth) { in read_partial_connect()
1758 size = le32_to_cpu(con->in_reply.authorizer_len); in read_partial_connect()
1759 if (size > con->auth->authorizer_reply_buf_len) { in read_partial_connect()
1761 con->auth->authorizer_reply_buf_len); in read_partial_connect()
1762 ret = -EINVAL; in read_partial_connect()
1768 con->auth->authorizer_reply_buf); in read_partial_connect()
1773 dout("read_partial_connect %p tag %d, con_seq = %u, g_seq = %u\n", in read_partial_connect()
1774 con, (int)con->in_reply.tag, in read_partial_connect()
1775 le32_to_cpu(con->in_reply.connect_seq), in read_partial_connect()
1776 le32_to_cpu(con->in_reply.global_seq)); in read_partial_connect()
1786 if (memcmp(con->in_banner, CEPH_BANNER, strlen(CEPH_BANNER))) { in verify_hello()
1788 ceph_pr_addr(&con->peer_addr)); in verify_hello()
1789 con->error_msg = "protocol error, bad banner"; in verify_hello()
1790 return -1; in verify_hello()
1797 struct sockaddr_storage ss = addr->in_addr; /* align */ in addr_is_blank()
1798 struct in_addr *addr4 = &((struct sockaddr_in *)&ss)->sin_addr; in addr_is_blank()
1799 struct in6_addr *addr6 = &((struct sockaddr_in6 *)&ss)->sin6_addr; in addr_is_blank()
1803 return addr4->s_addr == htonl(INADDR_ANY); in addr_is_blank()
1806 default: in addr_is_blank()
1813 switch (get_unaligned(&addr->in_addr.ss_family)) { in addr_port()
1815 return ntohs(get_unaligned(&((struct sockaddr_in *)&addr->in_addr)->sin_port)); in addr_port()
1817 return ntohs(get_unaligned(&((struct sockaddr_in6 *)&addr->in_addr)->sin6_port)); in addr_port()
1824 switch (get_unaligned(&addr->in_addr.ss_family)) { in addr_set_port()
1826 put_unaligned(htons(p), &((struct sockaddr_in *)&addr->in_addr)->sin_port); in addr_set_port()
1829 put_unaligned(htons(p), &((struct sockaddr_in6 *)&addr->in_addr)->sin6_port); in addr_set_port()
1840 memset(&addr->in_addr, 0, sizeof(addr->in_addr)); in ceph_pton()
1842 …if (in4_pton(str, len, (u8 *)&((struct sockaddr_in *)&addr->in_addr)->sin_addr.s_addr, delim, ipen… in ceph_pton()
1843 put_unaligned(AF_INET, &addr->in_addr.ss_family); in ceph_pton()
1847 …if (in6_pton(str, len, (u8 *)&((struct sockaddr_in6 *)&addr->in_addr)->sin6_addr.s6_addr, delim, i… in ceph_pton()
1848 put_unaligned(AF_INET6, &addr->in_addr.ss_family); in ceph_pton()
1852 return -EINVAL; in ceph_pton()
1884 return -EINVAL; in ceph_dns_resolve_name()
1887 ip_len = dns_query(current->nsproxy->net_ns, in ceph_dns_resolve_name()
1888 NULL, name, end - name, NULL, &ip_addr, NULL, false); in ceph_dns_resolve_name()
1890 ret = ceph_pton(ip_addr, ip_len, addr, -1, NULL); in ceph_dns_resolve_name()
1892 ret = -ESRCH; in ceph_dns_resolve_name()
1898 pr_info("resolve '%.*s' (ret=%d): %s\n", (int)(end - name), name, in ceph_dns_resolve_name()
1907 return -EINVAL; in ceph_dns_resolve_name()
1928 * Parse an ip[:port] list into an addr array. Use the default
1935 int i, ret = -EINVAL; in ceph_parse_ips()
1938 dout("parse_ips on '%.*s'\n", (int)(end-c), c); in ceph_parse_ips()
1949 ret = ceph_parse_server_name(p, end - p, &addr[i], delim, &ipend); in ceph_parse_ips()
1952 ret = -EINVAL; in ceph_parse_ips()
1958 dout("missing matching ']'\n"); in ceph_parse_ips()
1969 port = (port * 10) + (*p - '0'); in ceph_parse_ips()
1983 dout("parse_ips got %s\n", ceph_pr_addr(&addr[i])); in ceph_parse_ips()
2005 dout("process_banner on %p\n", con); in process_banner()
2008 return -1; in process_banner()
2015 if (memcmp(&con->peer_addr, &con->actual_peer_addr, in process_banner()
2016 sizeof(con->peer_addr)) != 0 && in process_banner()
2017 !(addr_is_blank(&con->actual_peer_addr) && in process_banner()
2018 con->actual_peer_addr.nonce == con->peer_addr.nonce)) { in process_banner()
2020 ceph_pr_addr(&con->peer_addr), in process_banner()
2021 le32_to_cpu(con->peer_addr.nonce), in process_banner()
2022 ceph_pr_addr(&con->actual_peer_addr), in process_banner()
2023 le32_to_cpu(con->actual_peer_addr.nonce)); in process_banner()
2024 con->error_msg = "wrong peer at address"; in process_banner()
2025 return -1; in process_banner()
2031 if (addr_is_blank(&con->msgr->inst.addr)) { in process_banner()
2032 int port = addr_port(&con->msgr->inst.addr); in process_banner()
2034 memcpy(&con->msgr->inst.addr.in_addr, in process_banner()
2035 &con->peer_addr_for_me.in_addr, in process_banner()
2036 sizeof(con->peer_addr_for_me.in_addr)); in process_banner()
2037 addr_set_port(&con->msgr->inst.addr, port); in process_banner()
2038 encode_my_addr(con->msgr); in process_banner()
2039 dout("process_banner learned my addr is %s\n", in process_banner()
2040 ceph_pr_addr(&con->msgr->inst.addr)); in process_banner()
2048 u64 sup_feat = from_msgr(con->msgr)->supported_features; in process_connect()
2049 u64 req_feat = from_msgr(con->msgr)->required_features; in process_connect()
2050 u64 server_feat = le64_to_cpu(con->in_reply.features); in process_connect()
2053 dout("process_connect on %p tag %d\n", con, (int)con->in_tag); in process_connect()
2055 if (con->auth) { in process_connect()
2056 int len = le32_to_cpu(con->in_reply.authorizer_len); in process_connect()
2059 * Any connection that defines ->get_authorizer() in process_connect()
2060 * should also define ->add_authorizer_challenge() and in process_connect()
2061 * ->verify_authorizer_reply(). in process_connect()
2065 if (con->in_reply.tag == CEPH_MSGR_TAG_CHALLENGE_AUTHORIZER) { in process_connect()
2066 ret = con->ops->add_authorizer_challenge( in process_connect()
2067 con, con->auth->authorizer_reply_buf, len); in process_connect()
2078 ret = con->ops->verify_authorizer_reply(con); in process_connect()
2080 con->error_msg = "bad authorize reply"; in process_connect()
2086 switch (con->in_reply.tag) { in process_connect()
2090 ENTITY_NAME(con->peer_name), in process_connect()
2091 ceph_pr_addr(&con->peer_addr), in process_connect()
2093 con->error_msg = "missing required protocol features"; in process_connect()
2095 return -1; in process_connect()
2100 ENTITY_NAME(con->peer_name), in process_connect()
2101 ceph_pr_addr(&con->peer_addr), in process_connect()
2102 le32_to_cpu(con->out_connect.protocol_version), in process_connect()
2103 le32_to_cpu(con->in_reply.protocol_version)); in process_connect()
2104 con->error_msg = "protocol version mismatch"; in process_connect()
2106 return -1; in process_connect()
2109 con->auth_retry++; in process_connect()
2110 dout("process_connect %p got BADAUTHORIZER attempt %d\n", con, in process_connect()
2111 con->auth_retry); in process_connect()
2112 if (con->auth_retry == 2) { in process_connect()
2113 con->error_msg = "connect authorization failure"; in process_connect()
2114 return -1; in process_connect()
2131 dout("process_connect got RESET peer seq %u\n", in process_connect()
2132 le32_to_cpu(con->in_reply.connect_seq)); in process_connect()
2134 ENTITY_NAME(con->peer_name), in process_connect()
2135 ceph_pr_addr(&con->peer_addr)); in process_connect()
2144 mutex_unlock(&con->mutex); in process_connect()
2145 pr_info("reset on %s%lld\n", ENTITY_NAME(con->peer_name)); in process_connect()
2146 if (con->ops->peer_reset) in process_connect()
2147 con->ops->peer_reset(con); in process_connect()
2148 mutex_lock(&con->mutex); in process_connect()
2149 if (con->state != CON_STATE_NEGOTIATING) in process_connect()
2150 return -EAGAIN; in process_connect()
2158 dout("process_connect got RETRY_SESSION my seq %u, peer %u\n", in process_connect()
2159 le32_to_cpu(con->out_connect.connect_seq), in process_connect()
2160 le32_to_cpu(con->in_reply.connect_seq)); in process_connect()
2161 con->connect_seq = le32_to_cpu(con->in_reply.connect_seq); in process_connect()
2174 dout("process_connect got RETRY_GLOBAL my %u peer_gseq %u\n", in process_connect()
2175 con->peer_global_seq, in process_connect()
2176 le32_to_cpu(con->in_reply.global_seq)); in process_connect()
2177 get_global_seq(con->msgr, in process_connect()
2178 le32_to_cpu(con->in_reply.global_seq)); in process_connect()
2191 ENTITY_NAME(con->peer_name), in process_connect()
2192 ceph_pr_addr(&con->peer_addr), in process_connect()
2194 con->error_msg = "missing required protocol features"; in process_connect()
2196 return -1; in process_connect()
2199 WARN_ON(con->state != CON_STATE_NEGOTIATING); in process_connect()
2200 con->state = CON_STATE_OPEN; in process_connect()
2201 con->auth_retry = 0; /* we authenticated; clear flag */ in process_connect()
2202 con->peer_global_seq = le32_to_cpu(con->in_reply.global_seq); in process_connect()
2203 con->connect_seq++; in process_connect()
2204 con->peer_features = server_feat; in process_connect()
2205 dout("process_connect got READY gseq %d cseq %d (%d)\n", in process_connect()
2206 con->peer_global_seq, in process_connect()
2207 le32_to_cpu(con->in_reply.connect_seq), in process_connect()
2208 con->connect_seq); in process_connect()
2209 WARN_ON(con->connect_seq != in process_connect()
2210 le32_to_cpu(con->in_reply.connect_seq)); in process_connect()
2212 if (con->in_reply.flags & CEPH_MSG_CONNECT_LOSSY) in process_connect()
2215 con->delay = 0; /* reset backoff memory */ in process_connect()
2217 if (con->in_reply.tag == CEPH_MSGR_TAG_SEQ) { in process_connect()
2232 con->error_msg = "protocol error, got WAIT as client"; in process_connect()
2233 return -1; in process_connect()
2235 default: in process_connect()
2236 con->error_msg = "protocol error, garbage tag during connect"; in process_connect()
2237 return -1; in process_connect()
2248 int size = sizeof (con->in_temp_ack); in read_partial_ack()
2251 return read_partial(con, end, size, &con->in_temp_ack); in read_partial_ack()
2260 u64 ack = le64_to_cpu(con->in_temp_ack); in process_ack()
2262 bool reconnect = (con->in_tag == CEPH_MSGR_TAG_SEQ); in process_ack()
2263 struct list_head *list = reconnect ? &con->out_queue : &con->out_sent; in process_ack()
2272 if (reconnect && m->needs_out_seq) in process_ack()
2274 seq = le64_to_cpu(m->hdr.seq); in process_ack()
2277 dout("got ack for seq %llu type %d at %p\n", seq, in process_ack()
2278 le16_to_cpu(m->hdr.type), m); in process_ack()
2279 m->ack_stamp = jiffies; in process_ack()
2295 while (section->iov_len < sec_len) { in read_partial_message_section()
2296 BUG_ON(section->iov_base == NULL); in read_partial_message_section()
2297 left = sec_len - section->iov_len; in read_partial_message_section()
2298 ret = ceph_tcp_recvmsg(con->sock, (char *)section->iov_base + in read_partial_message_section()
2299 section->iov_len, left); in read_partial_message_section()
2302 section->iov_len += ret; in read_partial_message_section()
2304 if (section->iov_len == sec_len) in read_partial_message_section()
2305 *crc = crc32c(0, section->iov_base, section->iov_len); in read_partial_message_section()
2312 struct ceph_msg *msg = con->in_msg; in read_partial_msg_data()
2313 struct ceph_msg_data_cursor *cursor = &msg->cursor; in read_partial_msg_data()
2314 bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); in read_partial_msg_data()
2321 if (!msg->num_data_items) in read_partial_msg_data()
2322 return -EIO; in read_partial_msg_data()
2325 crc = con->in_data_crc; in read_partial_msg_data()
2326 while (cursor->total_resid) { in read_partial_msg_data()
2327 if (!cursor->resid) { in read_partial_msg_data()
2333 ret = ceph_tcp_recvpage(con->sock, page, page_offset, length); in read_partial_msg_data()
2336 con->in_data_crc = crc; in read_partial_msg_data()
2346 con->in_data_crc = crc; in read_partial_msg_data()
2358 struct ceph_msg *m = con->in_msg; in read_partial_message()
2363 bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); in read_partial_message()
2364 bool need_sign = (con->peer_features & CEPH_FEATURE_MSG_AUTH); in read_partial_message()
2368 dout("read_partial_message con %p msg %p\n", con, m); in read_partial_message()
2371 size = sizeof (con->in_hdr); in read_partial_message()
2373 ret = read_partial(con, end, size, &con->in_hdr); in read_partial_message()
2377 crc = crc32c(0, &con->in_hdr, offsetof(struct ceph_msg_header, crc)); in read_partial_message()
2378 if (cpu_to_le32(crc) != con->in_hdr.crc) { in read_partial_message()
2380 crc, con->in_hdr.crc); in read_partial_message()
2381 return -EBADMSG; in read_partial_message()
2384 front_len = le32_to_cpu(con->in_hdr.front_len); in read_partial_message()
2386 return -EIO; in read_partial_message()
2387 middle_len = le32_to_cpu(con->in_hdr.middle_len); in read_partial_message()
2389 return -EIO; in read_partial_message()
2390 data_len = le32_to_cpu(con->in_hdr.data_len); in read_partial_message()
2392 return -EIO; in read_partial_message()
2395 seq = le64_to_cpu(con->in_hdr.seq); in read_partial_message()
2396 if ((s64)seq - (s64)con->in_seq < 1) { in read_partial_message()
2398 ENTITY_NAME(con->peer_name), in read_partial_message()
2399 ceph_pr_addr(&con->peer_addr), in read_partial_message()
2400 seq, con->in_seq + 1); in read_partial_message()
2401 con->in_base_pos = -front_len - middle_len - data_len - in read_partial_message()
2403 con->in_tag = CEPH_MSGR_TAG_READY; in read_partial_message()
2405 } else if ((s64)seq - (s64)con->in_seq > 1) { in read_partial_message()
2407 seq, con->in_seq + 1); in read_partial_message()
2408 con->error_msg = "bad message sequence # for incoming message"; in read_partial_message()
2409 return -EBADE; in read_partial_message()
2413 if (!con->in_msg) { in read_partial_message()
2416 dout("got hdr type %d front %d data %d\n", con->in_hdr.type, in read_partial_message()
2422 BUG_ON(!con->in_msg ^ skip); in read_partial_message()
2425 dout("alloc_msg said skip message\n"); in read_partial_message()
2426 con->in_base_pos = -front_len - middle_len - data_len - in read_partial_message()
2428 con->in_tag = CEPH_MSGR_TAG_READY; in read_partial_message()
2429 con->in_seq++; in read_partial_message()
2433 BUG_ON(!con->in_msg); in read_partial_message()
2434 BUG_ON(con->in_msg->con != con); in read_partial_message()
2435 m = con->in_msg; in read_partial_message()
2436 m->front.iov_len = 0; /* haven't read it yet */ in read_partial_message()
2437 if (m->middle) in read_partial_message()
2438 m->middle->vec.iov_len = 0; in read_partial_message()
2443 prepare_message_data(con->in_msg, data_len); in read_partial_message()
2447 ret = read_partial_message_section(con, &m->front, front_len, in read_partial_message()
2448 &con->in_front_crc); in read_partial_message()
2453 if (m->middle) { in read_partial_message()
2454 ret = read_partial_message_section(con, &m->middle->vec, in read_partial_message()
2456 &con->in_middle_crc); in read_partial_message()
2471 ret = read_partial(con, end, size, &m->footer); in read_partial_message()
2476 m->footer.flags = m->old_footer.flags; in read_partial_message()
2477 m->footer.sig = 0; in read_partial_message()
2480 dout("read_partial_message got msg %p %d (%u) + %d (%u) + %d (%u)\n", in read_partial_message()
2481 m, front_len, m->footer.front_crc, middle_len, in read_partial_message()
2482 m->footer.middle_crc, data_len, m->footer.data_crc); in read_partial_message()
2485 if (con->in_front_crc != le32_to_cpu(m->footer.front_crc)) { in read_partial_message()
2487 m, con->in_front_crc, m->footer.front_crc); in read_partial_message()
2488 return -EBADMSG; in read_partial_message()
2490 if (con->in_middle_crc != le32_to_cpu(m->footer.middle_crc)) { in read_partial_message()
2492 m, con->in_middle_crc, m->footer.middle_crc); in read_partial_message()
2493 return -EBADMSG; in read_partial_message()
2496 (m->footer.flags & CEPH_MSG_FOOTER_NOCRC) == 0 && in read_partial_message()
2497 con->in_data_crc != le32_to_cpu(m->footer.data_crc)) { in read_partial_message()
2499 con->in_data_crc, le32_to_cpu(m->footer.data_crc)); in read_partial_message()
2500 return -EBADMSG; in read_partial_message()
2503 if (need_sign && con->ops->check_message_signature && in read_partial_message()
2504 con->ops->check_message_signature(m)) { in read_partial_message()
2506 return -EBADMSG; in read_partial_message()
2519 struct ceph_msg *msg = con->in_msg; in process_message()
2521 BUG_ON(con->in_msg->con != con); in process_message()
2522 con->in_msg = NULL; in process_message()
2525 if (con->peer_name.type == 0) in process_message()
2526 con->peer_name = msg->hdr.src; in process_message()
2528 con->in_seq++; in process_message()
2529 mutex_unlock(&con->mutex); in process_message()
2531 dout("===== %p %llu from %s%lld %d=%s len %d+%d (%u %u %u) =====\n", in process_message()
2532 msg, le64_to_cpu(msg->hdr.seq), in process_message()
2533 ENTITY_NAME(msg->hdr.src), in process_message()
2534 le16_to_cpu(msg->hdr.type), in process_message()
2535 ceph_msg_type_name(le16_to_cpu(msg->hdr.type)), in process_message()
2536 le32_to_cpu(msg->hdr.front_len), in process_message()
2537 le32_to_cpu(msg->hdr.data_len), in process_message()
2538 con->in_front_crc, con->in_middle_crc, con->in_data_crc); in process_message()
2539 con->ops->dispatch(con, msg); in process_message()
2541 mutex_lock(&con->mutex); in process_message()
2551 ceph_decode_timespec64(&con->last_keepalive_ack, &ceph_ts); in read_keepalive_ack()
2564 dout("try_write start %p state %lu\n", con, con->state); in try_write()
2565 if (con->state != CON_STATE_PREOPEN && in try_write()
2566 con->state != CON_STATE_CONNECTING && in try_write()
2567 con->state != CON_STATE_NEGOTIATING && in try_write()
2568 con->state != CON_STATE_OPEN) in try_write()
2572 if (con->state == CON_STATE_PREOPEN) { in try_write()
2573 BUG_ON(con->sock); in try_write()
2574 con->state = CON_STATE_CONNECTING; in try_write()
2580 BUG_ON(con->in_msg); in try_write()
2581 con->in_tag = CEPH_MSGR_TAG_READY; in try_write()
2582 dout("try_write initiating connect on %p new state %lu\n", in try_write()
2583 con, con->state); in try_write()
2586 con->error_msg = "connect error"; in try_write()
2592 dout("try_write out_kvec_bytes %d\n", con->out_kvec_bytes); in try_write()
2593 BUG_ON(!con->sock); in try_write()
2596 if (con->out_kvec_left) { in try_write()
2601 if (con->out_skip) { in try_write()
2608 if (con->out_msg) { in try_write()
2609 if (con->out_msg_done) { in try_write()
2610 ceph_msg_put(con->out_msg); in try_write()
2611 con->out_msg = NULL; /* we're done with this one */ in try_write()
2621 dout("try_write write_partial_message_data err %d\n", in try_write()
2628 if (con->state == CON_STATE_OPEN) { in try_write()
2634 if (!list_empty(&con->out_queue)) { in try_write()
2638 if (con->in_seq > con->in_seq_acked) { in try_write()
2646 dout("try_write nothing else to write.\n"); in try_write()
2649 dout("try_write done on %p ret %d\n", con, ret); in try_write()
2658 int ret = -1; in try_read()
2661 dout("try_read start on %p state %lu\n", con, con->state); in try_read()
2662 if (con->state != CON_STATE_CONNECTING && in try_read()
2663 con->state != CON_STATE_NEGOTIATING && in try_read()
2664 con->state != CON_STATE_OPEN) in try_read()
2667 BUG_ON(!con->sock); in try_read()
2669 dout("try_read tag %d in_base_pos %d\n", (int)con->in_tag, in try_read()
2670 con->in_base_pos); in try_read()
2672 if (con->state == CON_STATE_CONNECTING) { in try_read()
2673 dout("try_read connecting\n"); in try_read()
2681 con->state = CON_STATE_NEGOTIATING; in try_read()
2697 if (con->state == CON_STATE_NEGOTIATING) { in try_read()
2698 dout("try_read negotiating\n"); in try_read()
2708 WARN_ON(con->state != CON_STATE_OPEN); in try_read()
2710 if (con->in_base_pos < 0) { in try_read()
2714 ret = ceph_tcp_recvmsg(con->sock, NULL, -con->in_base_pos); in try_read()
2717 dout("skipped %d / %d bytes\n", ret, -con->in_base_pos); in try_read()
2718 con->in_base_pos += ret; in try_read()
2719 if (con->in_base_pos) in try_read()
2722 if (con->in_tag == CEPH_MSGR_TAG_READY) { in try_read()
2726 ret = ceph_tcp_recvmsg(con->sock, &con->in_tag, 1); in try_read()
2729 dout("try_read got tag %d\n", (int)con->in_tag); in try_read()
2730 switch (con->in_tag) { in try_read()
2742 con->state = CON_STATE_CLOSED; in try_read()
2744 default: in try_read()
2748 if (con->in_tag == CEPH_MSGR_TAG_MSG) { in try_read()
2752 case -EBADMSG: in try_read()
2753 con->error_msg = "bad crc/signature"; in try_read()
2755 case -EBADE: in try_read()
2756 ret = -EIO; in try_read()
2758 case -EIO: in try_read()
2759 con->error_msg = "io error"; in try_read()
2764 if (con->in_tag == CEPH_MSGR_TAG_READY) in try_read()
2767 if (con->state == CON_STATE_OPEN) in try_read()
2771 if (con->in_tag == CEPH_MSGR_TAG_ACK || in try_read()
2772 con->in_tag == CEPH_MSGR_TAG_SEQ) { in try_read()
2783 if (con->in_tag == CEPH_MSGR_TAG_KEEPALIVE2_ACK) { in try_read()
2791 dout("try_read done on %p ret %d\n", con, ret); in try_read()
2795 pr_err("try_read bad con->in_tag = %d\n", (int)con->in_tag); in try_read()
2796 con->error_msg = "protocol error, garbage tag"; in try_read()
2797 ret = -1; in try_read()
2809 if (!con->ops->get(con)) { in queue_con_delay()
2810 dout("%s %p ref count 0\n", __func__, con); in queue_con_delay()
2811 return -ENOENT; in queue_con_delay()
2814 dout("%s %p %lu\n", __func__, con, delay); in queue_con_delay()
2815 if (!queue_delayed_work(ceph_msgr_wq, &con->work, delay)) { in queue_con_delay()
2816 dout("%s %p - already queued\n", __func__, con); in queue_con_delay()
2817 con->ops->put(con); in queue_con_delay()
2818 return -EBUSY; in queue_con_delay()
2831 if (cancel_delayed_work(&con->work)) { in cancel_con()
2832 dout("%s %p\n", __func__, con); in cancel_con()
2833 con->ops->put(con); in cancel_con()
2844 con->error_msg = "socket closed (con state " #x ")"; \ in con_sock_closed()
2847 switch (con->state) { in con_sock_closed()
2854 default: in con_sock_closed()
2856 __func__, con, con->state); in con_sock_closed()
2857 con->error_msg = "unrecognized con state"; in con_sock_closed()
2873 ret = queue_con_delay(con, round_jiffies_relative(con->delay)); in con_backoff()
2875 dout("%s: con %p FAILED to back off %lu\n", __func__, in con_backoff()
2876 con, con->delay); in con_backoff()
2877 BUG_ON(ret == -ENOENT); in con_backoff()
2884 /* Finish fault handling; con->mutex must *not* be held here */
2888 dout("%s %p\n", __func__, con); in con_fault_finish()
2894 if (con->auth_retry) { in con_fault_finish()
2895 dout("auth_retry %d, invalidating\n", con->auth_retry); in con_fault_finish()
2896 if (con->ops->invalidate_authorizer) in con_fault_finish()
2897 con->ops->invalidate_authorizer(con); in con_fault_finish()
2898 con->auth_retry = 0; in con_fault_finish()
2901 if (con->ops->fault) in con_fault_finish()
2902 con->ops->fault(con); in con_fault_finish()
2914 mutex_lock(&con->mutex); in ceph_con_workfn()
2919 dout("%s: con %p SOCK_CLOSED\n", __func__, con); in ceph_con_workfn()
2923 dout("%s: con %p BACKOFF\n", __func__, con); in ceph_con_workfn()
2926 if (con->state == CON_STATE_STANDBY) { in ceph_con_workfn()
2927 dout("%s: con %p STANDBY\n", __func__, con); in ceph_con_workfn()
2930 if (con->state == CON_STATE_CLOSED) { in ceph_con_workfn()
2931 dout("%s: con %p CLOSED\n", __func__, con); in ceph_con_workfn()
2932 BUG_ON(con->sock); in ceph_con_workfn()
2935 if (con->state == CON_STATE_PREOPEN) { in ceph_con_workfn()
2936 dout("%s: con %p PREOPEN\n", __func__, con); in ceph_con_workfn()
2937 BUG_ON(con->sock); in ceph_con_workfn()
2942 if (ret == -EAGAIN) in ceph_con_workfn()
2944 if (!con->error_msg) in ceph_con_workfn()
2945 con->error_msg = "socket error on read"; in ceph_con_workfn()
2952 if (ret == -EAGAIN) in ceph_con_workfn()
2954 if (!con->error_msg) in ceph_con_workfn()
2955 con->error_msg = "socket error on write"; in ceph_con_workfn()
2963 mutex_unlock(&con->mutex); in ceph_con_workfn()
2968 con->ops->put(con); in ceph_con_workfn()
2977 dout("fault %p state %lu to peer %s\n", in con_fault()
2978 con, con->state, ceph_pr_addr(&con->peer_addr)); in con_fault()
2980 pr_warn("%s%lld %s %s\n", ENTITY_NAME(con->peer_name), in con_fault()
2981 ceph_pr_addr(&con->peer_addr), con->error_msg); in con_fault()
2982 con->error_msg = NULL; in con_fault()
2984 WARN_ON(con->state != CON_STATE_CONNECTING && in con_fault()
2985 con->state != CON_STATE_NEGOTIATING && in con_fault()
2986 con->state != CON_STATE_OPEN); in con_fault()
2991 dout("fault on LOSSYTX channel, marking CLOSED\n"); in con_fault()
2992 con->state = CON_STATE_CLOSED; in con_fault()
2996 if (con->in_msg) { in con_fault()
2997 BUG_ON(con->in_msg->con != con); in con_fault()
2998 ceph_msg_put(con->in_msg); in con_fault()
2999 con->in_msg = NULL; in con_fault()
3001 if (con->out_msg) { in con_fault()
3002 BUG_ON(con->out_msg->con != con); in con_fault()
3003 ceph_msg_put(con->out_msg); in con_fault()
3004 con->out_msg = NULL; in con_fault()
3008 list_splice_init(&con->out_sent, &con->out_queue); in con_fault()
3012 if (list_empty(&con->out_queue) && in con_fault()
3014 dout("fault %p setting STANDBY clearing WRITE_PENDING\n", con); in con_fault()
3016 con->state = CON_STATE_STANDBY; in con_fault()
3019 con->state = CON_STATE_PREOPEN; in con_fault()
3020 if (con->delay == 0) in con_fault()
3021 con->delay = BASE_DELAY_INTERVAL; in con_fault()
3022 else if (con->delay < MAX_DELAY_INTERVAL) in con_fault()
3023 con->delay *= 2; in con_fault()
3032 u32 nonce = le32_to_cpu(msgr->inst.addr.nonce) + 1000000; in ceph_messenger_reset_nonce()
3033 msgr->inst.addr.nonce = cpu_to_le32(nonce); in ceph_messenger_reset_nonce()
3043 spin_lock_init(&msgr->global_seq_lock); in ceph_messenger_init()
3046 msgr->inst.addr = *myaddr; in ceph_messenger_init()
3049 msgr->inst.addr.type = 0; in ceph_messenger_init()
3050 get_random_bytes(&msgr->inst.addr.nonce, sizeof(msgr->inst.addr.nonce)); in ceph_messenger_init()
3053 atomic_set(&msgr->stopping, 0); in ceph_messenger_init()
3054 write_pnet(&msgr->net, get_net(current->nsproxy->net_ns)); in ceph_messenger_init()
3056 dout("%s %p\n", __func__, msgr); in ceph_messenger_init()
3062 put_net(read_pnet(&msgr->net)); in ceph_messenger_fini()
3068 if (msg->con) in msg_con_set()
3069 msg->con->ops->put(msg->con); in msg_con_set()
3071 msg->con = con ? con->ops->get(con) : NULL; in msg_con_set()
3072 BUG_ON(msg->con != con); in msg_con_set()
3078 if (con->state == CON_STATE_STANDBY) { in clear_standby()
3079 dout("clear_standby %p and ++connect_seq\n", con); in clear_standby()
3080 con->state = CON_STATE_PREOPEN; in clear_standby()
3081 con->connect_seq++; in clear_standby()
3093 msg->hdr.src = con->msgr->inst.name; in ceph_con_send()
3094 BUG_ON(msg->front.iov_len != le32_to_cpu(msg->hdr.front_len)); in ceph_con_send()
3095 msg->needs_out_seq = true; in ceph_con_send()
3097 mutex_lock(&con->mutex); in ceph_con_send()
3099 if (con->state == CON_STATE_CLOSED) { in ceph_con_send()
3100 dout("con_send %p closed, dropping %p\n", con, msg); in ceph_con_send()
3102 mutex_unlock(&con->mutex); in ceph_con_send()
3108 BUG_ON(!list_empty(&msg->list_head)); in ceph_con_send()
3109 list_add_tail(&msg->list_head, &con->out_queue); in ceph_con_send()
3110 dout("----- %p to %s%lld %d=%s len %d+%d+%d -----\n", msg, in ceph_con_send()
3111 ENTITY_NAME(con->peer_name), le16_to_cpu(msg->hdr.type), in ceph_con_send()
3112 ceph_msg_type_name(le16_to_cpu(msg->hdr.type)), in ceph_con_send()
3113 le32_to_cpu(msg->hdr.front_len), in ceph_con_send()
3114 le32_to_cpu(msg->hdr.middle_len), in ceph_con_send()
3115 le32_to_cpu(msg->hdr.data_len)); in ceph_con_send()
3118 mutex_unlock(&con->mutex); in ceph_con_send()
3132 struct ceph_connection *con = msg->con; in ceph_msg_revoke()
3135 dout("%s msg %p null con\n", __func__, msg); in ceph_msg_revoke()
3139 mutex_lock(&con->mutex); in ceph_msg_revoke()
3140 if (!list_empty(&msg->list_head)) { in ceph_msg_revoke()
3141 dout("%s %p msg %p - was on queue\n", __func__, con, msg); in ceph_msg_revoke()
3142 list_del_init(&msg->list_head); in ceph_msg_revoke()
3143 msg->hdr.seq = 0; in ceph_msg_revoke()
3147 if (con->out_msg == msg) { in ceph_msg_revoke()
3148 BUG_ON(con->out_skip); in ceph_msg_revoke()
3150 if (con->out_msg_done) { in ceph_msg_revoke()
3151 con->out_skip += con_out_kvec_skip(con); in ceph_msg_revoke()
3153 BUG_ON(!msg->data_length); in ceph_msg_revoke()
3154 con->out_skip += sizeof_footer(con); in ceph_msg_revoke()
3157 if (msg->data_length) in ceph_msg_revoke()
3158 con->out_skip += msg->cursor.total_resid; in ceph_msg_revoke()
3159 if (msg->middle) in ceph_msg_revoke()
3160 con->out_skip += con_out_kvec_skip(con); in ceph_msg_revoke()
3161 con->out_skip += con_out_kvec_skip(con); in ceph_msg_revoke()
3163 dout("%s %p msg %p - was sending, will write %d skip %d\n", in ceph_msg_revoke()
3164 __func__, con, msg, con->out_kvec_bytes, con->out_skip); in ceph_msg_revoke()
3165 msg->hdr.seq = 0; in ceph_msg_revoke()
3166 con->out_msg = NULL; in ceph_msg_revoke()
3170 mutex_unlock(&con->mutex); in ceph_msg_revoke()
3178 struct ceph_connection *con = msg->con; in ceph_msg_revoke_incoming()
3181 dout("%s msg %p null con\n", __func__, msg); in ceph_msg_revoke_incoming()
3185 mutex_lock(&con->mutex); in ceph_msg_revoke_incoming()
3186 if (con->in_msg == msg) { in ceph_msg_revoke_incoming()
3187 unsigned int front_len = le32_to_cpu(con->in_hdr.front_len); in ceph_msg_revoke_incoming()
3188 unsigned int middle_len = le32_to_cpu(con->in_hdr.middle_len); in ceph_msg_revoke_incoming()
3189 unsigned int data_len = le32_to_cpu(con->in_hdr.data_len); in ceph_msg_revoke_incoming()
3192 dout("%s %p msg %p revoked\n", __func__, con, msg); in ceph_msg_revoke_incoming()
3193 con->in_base_pos = con->in_base_pos - in ceph_msg_revoke_incoming()
3194 sizeof(struct ceph_msg_header) - in ceph_msg_revoke_incoming()
3195 front_len - in ceph_msg_revoke_incoming()
3196 middle_len - in ceph_msg_revoke_incoming()
3197 data_len - in ceph_msg_revoke_incoming()
3199 ceph_msg_put(con->in_msg); in ceph_msg_revoke_incoming()
3200 con->in_msg = NULL; in ceph_msg_revoke_incoming()
3201 con->in_tag = CEPH_MSGR_TAG_READY; in ceph_msg_revoke_incoming()
3202 con->in_seq++; in ceph_msg_revoke_incoming()
3204 dout("%s %p in_msg %p msg %p no-op\n", in ceph_msg_revoke_incoming()
3205 __func__, con, con->in_msg, msg); in ceph_msg_revoke_incoming()
3207 mutex_unlock(&con->mutex); in ceph_msg_revoke_incoming()
3215 dout("con_keepalive %p\n", con); in ceph_con_keepalive()
3216 mutex_lock(&con->mutex); in ceph_con_keepalive()
3219 mutex_unlock(&con->mutex); in ceph_con_keepalive()
3230 (con->peer_features & CEPH_FEATURE_MSGR_KEEPALIVE2)) { in ceph_con_keepalive_expired()
3235 ts = timespec64_add(con->last_keepalive_ack, ts); in ceph_con_keepalive_expired()
3243 BUG_ON(msg->num_data_items >= msg->max_data_items); in ceph_msg_data_add()
3244 return &msg->data[msg->num_data_items++]; in ceph_msg_data_add()
3249 if (data->type == CEPH_MSG_DATA_PAGES && data->own_pages) { in ceph_msg_data_destroy()
3250 int num_pages = calc_pages_for(data->alignment, data->length); in ceph_msg_data_destroy()
3251 ceph_release_page_vector(data->pages, num_pages); in ceph_msg_data_destroy()
3252 } else if (data->type == CEPH_MSG_DATA_PAGELIST) { in ceph_msg_data_destroy()
3253 ceph_pagelist_release(data->pagelist); in ceph_msg_data_destroy()
3266 data->type = CEPH_MSG_DATA_PAGES; in ceph_msg_data_add_pages()
3267 data->pages = pages; in ceph_msg_data_add_pages()
3268 data->length = length; in ceph_msg_data_add_pages()
3269 data->alignment = alignment & ~PAGE_MASK; in ceph_msg_data_add_pages()
3270 data->own_pages = own_pages; in ceph_msg_data_add_pages()
3272 msg->data_length += length; in ceph_msg_data_add_pages()
3282 BUG_ON(!pagelist->length); in ceph_msg_data_add_pagelist()
3285 data->type = CEPH_MSG_DATA_PAGELIST; in ceph_msg_data_add_pagelist()
3286 refcount_inc(&pagelist->refcnt); in ceph_msg_data_add_pagelist()
3287 data->pagelist = pagelist; in ceph_msg_data_add_pagelist()
3289 msg->data_length += pagelist->length; in ceph_msg_data_add_pagelist()
3300 data->type = CEPH_MSG_DATA_BIO; in ceph_msg_data_add_bio()
3301 data->bio_pos = *bio_pos; in ceph_msg_data_add_bio()
3302 data->bio_length = length; in ceph_msg_data_add_bio()
3304 msg->data_length += length; in ceph_msg_data_add_bio()
3315 data->type = CEPH_MSG_DATA_BVECS; in ceph_msg_data_add_bvecs()
3316 data->bvec_pos = *bvec_pos; in ceph_msg_data_add_bvecs()
3318 msg->data_length += bvec_pos->iter.bi_size; in ceph_msg_data_add_bvecs()
3335 m->hdr.type = cpu_to_le16(type); in ceph_msg_new2()
3336 m->hdr.priority = cpu_to_le16(CEPH_MSG_PRIO_DEFAULT); in ceph_msg_new2()
3337 m->hdr.front_len = cpu_to_le32(front_len); in ceph_msg_new2()
3339 INIT_LIST_HEAD(&m->list_head); in ceph_msg_new2()
3340 kref_init(&m->kref); in ceph_msg_new2()
3344 m->front.iov_base = ceph_kvmalloc(front_len, flags); in ceph_msg_new2()
3345 if (m->front.iov_base == NULL) { in ceph_msg_new2()
3346 dout("ceph_msg_new can't allocate %d bytes\n", in ceph_msg_new2()
3351 m->front.iov_base = NULL; in ceph_msg_new2()
3353 m->front_alloc_len = m->front.iov_len = front_len; in ceph_msg_new2()
3356 m->data = kmalloc_array(max_data_items, sizeof(*m->data), in ceph_msg_new2()
3358 if (!m->data) in ceph_msg_new2()
3361 m->max_data_items = max_data_items; in ceph_msg_new2()
3364 dout("ceph_msg_new %p front %d\n", m, front_len); in ceph_msg_new2()
3375 dout("msg_new can't create type %d front %d\n", type, in ceph_msg_new2()
3391 * allocated by alloc_msg. This allows us to read a small fixed-size
3392 * per-type header in the front and then gracefully fail (i.e.,
3398 int type = le16_to_cpu(msg->hdr.type); in ceph_alloc_middle()
3399 int middle_len = le32_to_cpu(msg->hdr.middle_len); in ceph_alloc_middle()
3401 dout("alloc_middle %p type %d %s middle_len %d\n", msg, type, in ceph_alloc_middle()
3404 BUG_ON(msg->middle); in ceph_alloc_middle()
3406 msg->middle = ceph_buffer_new(middle_len, GFP_NOFS); in ceph_alloc_middle()
3407 if (!msg->middle) in ceph_alloc_middle()
3408 return -ENOMEM; in ceph_alloc_middle()
3414 * connection, and save the result in con->in_msg. Uses the
3420 * - the next message should be skipped and ignored.
3421 * - con->in_msg == NULL
3423 * - con->in_msg is non-null.
3425 * - con->in_msg == NULL
3429 struct ceph_msg_header *hdr = &con->in_hdr; in ceph_con_in_msg_alloc()
3430 int middle_len = le32_to_cpu(hdr->middle_len); in ceph_con_in_msg_alloc()
3434 BUG_ON(con->in_msg != NULL); in ceph_con_in_msg_alloc()
3435 BUG_ON(!con->ops->alloc_msg); in ceph_con_in_msg_alloc()
3437 mutex_unlock(&con->mutex); in ceph_con_in_msg_alloc()
3438 msg = con->ops->alloc_msg(con, hdr, skip); in ceph_con_in_msg_alloc()
3439 mutex_lock(&con->mutex); in ceph_con_in_msg_alloc()
3440 if (con->state != CON_STATE_OPEN) { in ceph_con_in_msg_alloc()
3443 return -EAGAIN; in ceph_con_in_msg_alloc()
3448 con->in_msg = msg; in ceph_con_in_msg_alloc()
3458 con->error_msg = "error allocating memory for incoming message"; in ceph_con_in_msg_alloc()
3459 return -ENOMEM; in ceph_con_in_msg_alloc()
3461 memcpy(&con->in_msg->hdr, &con->in_hdr, sizeof(con->in_hdr)); in ceph_con_in_msg_alloc()
3463 if (middle_len && !con->in_msg->middle) { in ceph_con_in_msg_alloc()
3464 ret = ceph_alloc_middle(con, con->in_msg); in ceph_con_in_msg_alloc()
3466 ceph_msg_put(con->in_msg); in ceph_con_in_msg_alloc()
3467 con->in_msg = NULL; in ceph_con_in_msg_alloc()
3480 dout("%s %p\n", __func__, m); in ceph_msg_free()
3481 kvfree(m->front.iov_base); in ceph_msg_free()
3482 kfree(m->data); in ceph_msg_free()
3491 dout("%s %p\n", __func__, m); in ceph_msg_release()
3492 WARN_ON(!list_empty(&m->list_head)); in ceph_msg_release()
3497 if (m->middle) { in ceph_msg_release()
3498 ceph_buffer_put(m->middle); in ceph_msg_release()
3499 m->middle = NULL; in ceph_msg_release()
3502 for (i = 0; i < m->num_data_items; i++) in ceph_msg_release()
3503 ceph_msg_data_destroy(&m->data[i]); in ceph_msg_release()
3505 if (m->pool) in ceph_msg_release()
3506 ceph_msgpool_put(m->pool, m); in ceph_msg_release()
3513 dout("%s %p (was %d)\n", __func__, msg, in ceph_msg_get()
3514 kref_read(&msg->kref)); in ceph_msg_get()
3515 kref_get(&msg->kref); in ceph_msg_get()
3522 dout("%s %p (was %d)\n", __func__, msg, in ceph_msg_put()
3523 kref_read(&msg->kref)); in ceph_msg_put()
3524 kref_put(&msg->kref, ceph_msg_release); in ceph_msg_put()
3531 msg->front_alloc_len, msg->data_length); in ceph_msg_dump()
3534 &msg->hdr, sizeof(msg->hdr), true); in ceph_msg_dump()
3537 msg->front.iov_base, msg->front.iov_len, true); in ceph_msg_dump()
3538 if (msg->middle) in ceph_msg_dump()
3541 msg->middle->vec.iov_base, in ceph_msg_dump()
3542 msg->middle->vec.iov_len, true); in ceph_msg_dump()
3545 &msg->footer, sizeof(msg->footer), true); in ceph_msg_dump()