Vlad Yasevich | 60c778b | 2008-01-11 09:57:09 -0500 | [diff] [blame] | 1 | /* SCTP kernel implementation |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Copyright (c) 2003 International Business Machines, Corp. |
| 3 | * |
Vlad Yasevich | 60c778b | 2008-01-11 09:57:09 -0500 | [diff] [blame] | 4 | * This file is part of the SCTP kernel implementation |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
Vlad Yasevich | 60c778b | 2008-01-11 09:57:09 -0500 | [diff] [blame] | 6 | * This SCTP implementation is free software; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * you can redistribute it and/or modify it under the terms of |
| 8 | * the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2, or (at your option) |
| 10 | * any later version. |
| 11 | * |
Vlad Yasevich | 60c778b | 2008-01-11 09:57:09 -0500 | [diff] [blame] | 12 | * This SCTP implementation is distributed in the hope that it |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied |
| 14 | * ************************ |
| 15 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 16 | * See the GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with GNU CC; see the file COPYING. If not, write to |
| 20 | * the Free Software Foundation, 59 Temple Place - Suite 330, |
| 21 | * Boston, MA 02111-1307, USA. |
| 22 | * |
| 23 | * Please send any bug reports or fixes you make to the |
| 24 | * email address(es): |
| 25 | * lksctp developers <lksctp-developers@lists.sourceforge.net> |
| 26 | * |
| 27 | * Or submit a bug report through the following website: |
| 28 | * http://www.sf.net/projects/lksctp |
| 29 | * |
| 30 | * Written or modified by: |
| 31 | * Sridhar Samudrala <sri@us.ibm.com> |
| 32 | * |
| 33 | * Any bugs reported given to us we will try to fix... any fixes shared will |
| 34 | * be incorporated into the next SCTP release. |
| 35 | */ |
| 36 | |
| 37 | #include <linux/types.h> |
| 38 | #include <linux/seq_file.h> |
| 39 | #include <linux/init.h> |
| 40 | #include <net/sctp/sctp.h> |
Pavel Emelyanov | 3f5340a | 2008-02-09 23:23:44 -0800 | [diff] [blame] | 41 | #include <net/ip.h> /* for snmp_fold_field */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | static struct snmp_mib sctp_snmp_list[] = { |
| 44 | SNMP_MIB_ITEM("SctpCurrEstab", SCTP_MIB_CURRESTAB), |
| 45 | SNMP_MIB_ITEM("SctpActiveEstabs", SCTP_MIB_ACTIVEESTABS), |
| 46 | SNMP_MIB_ITEM("SctpPassiveEstabs", SCTP_MIB_PASSIVEESTABS), |
| 47 | SNMP_MIB_ITEM("SctpAborteds", SCTP_MIB_ABORTEDS), |
| 48 | SNMP_MIB_ITEM("SctpShutdowns", SCTP_MIB_SHUTDOWNS), |
| 49 | SNMP_MIB_ITEM("SctpOutOfBlues", SCTP_MIB_OUTOFBLUES), |
| 50 | SNMP_MIB_ITEM("SctpChecksumErrors", SCTP_MIB_CHECKSUMERRORS), |
| 51 | SNMP_MIB_ITEM("SctpOutCtrlChunks", SCTP_MIB_OUTCTRLCHUNKS), |
| 52 | SNMP_MIB_ITEM("SctpOutOrderChunks", SCTP_MIB_OUTORDERCHUNKS), |
| 53 | SNMP_MIB_ITEM("SctpOutUnorderChunks", SCTP_MIB_OUTUNORDERCHUNKS), |
| 54 | SNMP_MIB_ITEM("SctpInCtrlChunks", SCTP_MIB_INCTRLCHUNKS), |
| 55 | SNMP_MIB_ITEM("SctpInOrderChunks", SCTP_MIB_INORDERCHUNKS), |
| 56 | SNMP_MIB_ITEM("SctpInUnorderChunks", SCTP_MIB_INUNORDERCHUNKS), |
| 57 | SNMP_MIB_ITEM("SctpFragUsrMsgs", SCTP_MIB_FRAGUSRMSGS), |
| 58 | SNMP_MIB_ITEM("SctpReasmUsrMsgs", SCTP_MIB_REASMUSRMSGS), |
| 59 | SNMP_MIB_ITEM("SctpOutSCTPPacks", SCTP_MIB_OUTSCTPPACKS), |
| 60 | SNMP_MIB_ITEM("SctpInSCTPPacks", SCTP_MIB_INSCTPPACKS), |
Sridhar Samudrala | ac0b046 | 2006-08-22 00:15:33 -0700 | [diff] [blame] | 61 | SNMP_MIB_ITEM("SctpT1InitExpireds", SCTP_MIB_T1_INIT_EXPIREDS), |
| 62 | SNMP_MIB_ITEM("SctpT1CookieExpireds", SCTP_MIB_T1_COOKIE_EXPIREDS), |
| 63 | SNMP_MIB_ITEM("SctpT2ShutdownExpireds", SCTP_MIB_T2_SHUTDOWN_EXPIREDS), |
| 64 | SNMP_MIB_ITEM("SctpT3RtxExpireds", SCTP_MIB_T3_RTX_EXPIREDS), |
| 65 | SNMP_MIB_ITEM("SctpT4RtoExpireds", SCTP_MIB_T4_RTO_EXPIREDS), |
| 66 | SNMP_MIB_ITEM("SctpT5ShutdownGuardExpireds", SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS), |
| 67 | SNMP_MIB_ITEM("SctpDelaySackExpireds", SCTP_MIB_DELAY_SACK_EXPIREDS), |
| 68 | SNMP_MIB_ITEM("SctpAutocloseExpireds", SCTP_MIB_AUTOCLOSE_EXPIREDS), |
| 69 | SNMP_MIB_ITEM("SctpT3Retransmits", SCTP_MIB_T3_RETRANSMITS), |
| 70 | SNMP_MIB_ITEM("SctpPmtudRetransmits", SCTP_MIB_PMTUD_RETRANSMITS), |
| 71 | SNMP_MIB_ITEM("SctpFastRetransmits", SCTP_MIB_FAST_RETRANSMITS), |
| 72 | SNMP_MIB_ITEM("SctpInPktSoftirq", SCTP_MIB_IN_PKT_SOFTIRQ), |
| 73 | SNMP_MIB_ITEM("SctpInPktBacklog", SCTP_MIB_IN_PKT_BACKLOG), |
| 74 | SNMP_MIB_ITEM("SctpInPktDiscards", SCTP_MIB_IN_PKT_DISCARDS), |
| 75 | SNMP_MIB_ITEM("SctpInDataChunkDiscards", SCTP_MIB_IN_DATA_CHUNK_DISCARDS), |
Vlad Yasevich | d2287f8 | 2005-08-23 10:12:04 -0700 | [diff] [blame] | 76 | SNMP_MIB_SENTINEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | }; |
| 78 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | /* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */ |
| 80 | static int sctp_snmp_seq_show(struct seq_file *seq, void *v) |
| 81 | { |
| 82 | int i; |
| 83 | |
| 84 | for (i = 0; sctp_snmp_list[i].name != NULL; i++) |
| 85 | seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name, |
Pavel Emelyanov | 3f5340a | 2008-02-09 23:23:44 -0800 | [diff] [blame] | 86 | snmp_fold_field((void **)sctp_statistics, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | sctp_snmp_list[i].entry)); |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | /* Initialize the seq file operations for 'snmp' object. */ |
| 93 | static int sctp_snmp_seq_open(struct inode *inode, struct file *file) |
| 94 | { |
| 95 | return single_open(file, sctp_snmp_seq_show, NULL); |
| 96 | } |
| 97 | |
Arjan van de Ven | da7071d | 2007-02-12 00:55:36 -0800 | [diff] [blame] | 98 | static const struct file_operations sctp_snmp_seq_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | .owner = THIS_MODULE, |
| 100 | .open = sctp_snmp_seq_open, |
| 101 | .read = seq_read, |
| 102 | .llseek = seq_lseek, |
| 103 | .release = single_release, |
| 104 | }; |
| 105 | |
| 106 | /* Set up the proc fs entry for 'snmp' object. */ |
| 107 | int __init sctp_snmp_proc_init(void) |
| 108 | { |
| 109 | struct proc_dir_entry *p; |
| 110 | |
| 111 | p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp); |
| 112 | if (!p) |
| 113 | return -ENOMEM; |
| 114 | |
| 115 | p->proc_fops = &sctp_snmp_seq_fops; |
| 116 | |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | /* Cleanup the proc fs entry for 'snmp' object. */ |
| 121 | void sctp_snmp_proc_exit(void) |
| 122 | { |
| 123 | remove_proc_entry("snmp", proc_net_sctp); |
| 124 | } |
| 125 | |
| 126 | /* Dump local addresses of an association/endpoint. */ |
| 127 | static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb) |
| 128 | { |
| 129 | struct list_head *pos; |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 130 | struct sctp_association *asoc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | struct sctp_sockaddr_entry *laddr; |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 132 | struct sctp_transport *peer; |
| 133 | union sctp_addr *addr, *primary = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | struct sctp_af *af; |
| 135 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 136 | if (epb->type == SCTP_EP_TYPE_ASSOCIATION) { |
| 137 | asoc = sctp_assoc(epb); |
| 138 | peer = asoc->peer.primary_path; |
Al Viro | 5f242a1 | 2006-11-20 17:05:23 -0800 | [diff] [blame] | 139 | primary = &peer->saddr; |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 140 | } |
| 141 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | list_for_each(pos, &epb->bind_addr.address_list) { |
| 143 | laddr = list_entry(pos, struct sctp_sockaddr_entry, list); |
Al Viro | 5f242a1 | 2006-11-20 17:05:23 -0800 | [diff] [blame] | 144 | addr = &laddr->a; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | af = sctp_get_af_specific(addr->sa.sa_family); |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 146 | if (primary && af->cmp_addr(addr, primary)) { |
| 147 | seq_printf(seq, "*"); |
| 148 | } |
Al Viro | 5f242a1 | 2006-11-20 17:05:23 -0800 | [diff] [blame] | 149 | af->seq_dump_addr(seq, addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | } |
| 151 | } |
| 152 | |
| 153 | /* Dump remote addresses of an association. */ |
| 154 | static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_association *assoc) |
| 155 | { |
| 156 | struct list_head *pos; |
| 157 | struct sctp_transport *transport; |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 158 | union sctp_addr *addr, *primary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | struct sctp_af *af; |
| 160 | |
Al Viro | acd2bc9 | 2006-11-20 17:06:04 -0800 | [diff] [blame] | 161 | primary = &assoc->peer.primary_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | list_for_each(pos, &assoc->peer.transport_addr_list) { |
| 163 | transport = list_entry(pos, struct sctp_transport, transports); |
Al Viro | 5f242a1 | 2006-11-20 17:05:23 -0800 | [diff] [blame] | 164 | addr = &transport->ipaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | af = sctp_get_af_specific(addr->sa.sa_family); |
Al Viro | acd2bc9 | 2006-11-20 17:06:04 -0800 | [diff] [blame] | 166 | if (af->cmp_addr(addr, primary)) { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 167 | seq_printf(seq, "*"); |
| 168 | } |
Al Viro | 5f242a1 | 2006-11-20 17:05:23 -0800 | [diff] [blame] | 169 | af->seq_dump_addr(seq, addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | } |
| 171 | } |
| 172 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 173 | static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos) |
| 174 | { |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 175 | if (*pos >= sctp_ep_hashsize) |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 176 | return NULL; |
| 177 | |
| 178 | if (*pos < 0) |
| 179 | *pos = 0; |
| 180 | |
| 181 | if (*pos == 0) |
| 182 | seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT UID INODE LADDRS\n"); |
| 183 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 184 | return (void *)pos; |
| 185 | } |
| 186 | |
| 187 | static void sctp_eps_seq_stop(struct seq_file *seq, void *v) |
| 188 | { |
| 189 | return; |
| 190 | } |
| 191 | |
| 192 | |
| 193 | static void * sctp_eps_seq_next(struct seq_file *seq, void *v, loff_t *pos) |
| 194 | { |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 195 | if (++*pos >= sctp_ep_hashsize) |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 196 | return NULL; |
| 197 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 198 | return pos; |
| 199 | } |
| 200 | |
| 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | /* Display sctp endpoints (/proc/net/sctp/eps). */ |
| 203 | static int sctp_eps_seq_show(struct seq_file *seq, void *v) |
| 204 | { |
| 205 | struct sctp_hashbucket *head; |
| 206 | struct sctp_ep_common *epb; |
| 207 | struct sctp_endpoint *ep; |
| 208 | struct sock *sk; |
Vlad Yasevich | d970dbf | 2007-11-09 11:43:40 -0500 | [diff] [blame] | 209 | struct hlist_node *node; |
Vlad Yasevich | 38b0e42 | 2006-01-17 11:54:06 -0800 | [diff] [blame] | 210 | int hash = *(loff_t *)v; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 212 | if (hash >= sctp_ep_hashsize) |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 213 | return -ENOMEM; |
| 214 | |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 215 | head = &sctp_ep_hashtable[hash]; |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 216 | sctp_local_bh_disable(); |
| 217 | read_lock(&head->lock); |
Vlad Yasevich | d970dbf | 2007-11-09 11:43:40 -0500 | [diff] [blame] | 218 | sctp_for_each_hentry(epb, node, &head->chain) { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 219 | ep = sctp_ep(epb); |
| 220 | sk = epb->sk; |
| 221 | seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk, |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 222 | sctp_sk(sk)->type, sk->sk_state, hash, |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 223 | epb->bind_addr.port, |
| 224 | sock_i_uid(sk), sock_i_ino(sk)); |
| 225 | |
| 226 | sctp_seq_dump_local_addrs(seq, epb); |
| 227 | seq_printf(seq, "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | } |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 229 | read_unlock(&head->lock); |
| 230 | sctp_local_bh_enable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
Philippe De Muyter | 56b3d97 | 2007-07-10 23:07:31 -0700 | [diff] [blame] | 235 | static const struct seq_operations sctp_eps_ops = { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 236 | .start = sctp_eps_seq_start, |
| 237 | .next = sctp_eps_seq_next, |
| 238 | .stop = sctp_eps_seq_stop, |
| 239 | .show = sctp_eps_seq_show, |
| 240 | }; |
| 241 | |
| 242 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | /* Initialize the seq file operations for 'eps' object. */ |
| 244 | static int sctp_eps_seq_open(struct inode *inode, struct file *file) |
| 245 | { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 246 | return seq_open(file, &sctp_eps_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | } |
| 248 | |
Arjan van de Ven | da7071d | 2007-02-12 00:55:36 -0800 | [diff] [blame] | 249 | static const struct file_operations sctp_eps_seq_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | .open = sctp_eps_seq_open, |
| 251 | .read = seq_read, |
| 252 | .llseek = seq_lseek, |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 253 | .release = seq_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | }; |
| 255 | |
| 256 | /* Set up the proc fs entry for 'eps' object. */ |
| 257 | int __init sctp_eps_proc_init(void) |
| 258 | { |
| 259 | struct proc_dir_entry *p; |
| 260 | |
| 261 | p = create_proc_entry("eps", S_IRUGO, proc_net_sctp); |
| 262 | if (!p) |
| 263 | return -ENOMEM; |
| 264 | |
| 265 | p->proc_fops = &sctp_eps_seq_fops; |
| 266 | |
| 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | /* Cleanup the proc fs entry for 'eps' object. */ |
| 271 | void sctp_eps_proc_exit(void) |
| 272 | { |
| 273 | remove_proc_entry("eps", proc_net_sctp); |
| 274 | } |
| 275 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 276 | |
| 277 | static void * sctp_assocs_seq_start(struct seq_file *seq, loff_t *pos) |
| 278 | { |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 279 | if (*pos >= sctp_assoc_hashsize) |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 280 | return NULL; |
| 281 | |
| 282 | if (*pos < 0) |
| 283 | *pos = 0; |
| 284 | |
| 285 | if (*pos == 0) |
| 286 | seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT " |
| 287 | "RPORT LADDRS <-> RADDRS\n"); |
| 288 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 289 | return (void *)pos; |
| 290 | } |
| 291 | |
| 292 | static void sctp_assocs_seq_stop(struct seq_file *seq, void *v) |
| 293 | { |
| 294 | return; |
| 295 | } |
| 296 | |
| 297 | |
| 298 | static void * sctp_assocs_seq_next(struct seq_file *seq, void *v, loff_t *pos) |
| 299 | { |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 300 | if (++*pos >= sctp_assoc_hashsize) |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 301 | return NULL; |
| 302 | |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 303 | return pos; |
| 304 | } |
| 305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | /* Display sctp associations (/proc/net/sctp/assocs). */ |
| 307 | static int sctp_assocs_seq_show(struct seq_file *seq, void *v) |
| 308 | { |
| 309 | struct sctp_hashbucket *head; |
| 310 | struct sctp_ep_common *epb; |
| 311 | struct sctp_association *assoc; |
| 312 | struct sock *sk; |
Vlad Yasevich | d970dbf | 2007-11-09 11:43:40 -0500 | [diff] [blame] | 313 | struct hlist_node *node; |
Vlad Yasevich | 38b0e42 | 2006-01-17 11:54:06 -0800 | [diff] [blame] | 314 | int hash = *(loff_t *)v; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 316 | if (hash >= sctp_assoc_hashsize) |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 317 | return -ENOMEM; |
| 318 | |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 319 | head = &sctp_assoc_hashtable[hash]; |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 320 | sctp_local_bh_disable(); |
| 321 | read_lock(&head->lock); |
Vlad Yasevich | d970dbf | 2007-11-09 11:43:40 -0500 | [diff] [blame] | 322 | sctp_for_each_hentry(epb, node, &head->chain) { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 323 | assoc = sctp_assoc(epb); |
| 324 | sk = epb->sk; |
| 325 | seq_printf(seq, |
| 326 | "%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ", |
| 327 | assoc, sk, sctp_sk(sk)->type, sk->sk_state, |
Vlad Yasevich | 49392e5 | 2006-01-17 11:53:06 -0800 | [diff] [blame] | 328 | assoc->state, hash, assoc->assoc_id, |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 329 | assoc->sndbuf_used, |
Vlad Yasevich | 6aa2551 | 2006-10-09 21:34:26 -0700 | [diff] [blame] | 330 | atomic_read(&assoc->rmem_alloc), |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 331 | sock_i_uid(sk), sock_i_ino(sk), |
| 332 | epb->bind_addr.port, |
| 333 | assoc->peer.port); |
| 334 | |
| 335 | seq_printf(seq, " "); |
| 336 | sctp_seq_dump_local_addrs(seq, epb); |
| 337 | seq_printf(seq, "<-> "); |
| 338 | sctp_seq_dump_remote_addrs(seq, assoc); |
| 339 | seq_printf(seq, "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | } |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 341 | read_unlock(&head->lock); |
| 342 | sctp_local_bh_enable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
| 344 | return 0; |
| 345 | } |
| 346 | |
Philippe De Muyter | 56b3d97 | 2007-07-10 23:07:31 -0700 | [diff] [blame] | 347 | static const struct seq_operations sctp_assoc_ops = { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 348 | .start = sctp_assocs_seq_start, |
| 349 | .next = sctp_assocs_seq_next, |
| 350 | .stop = sctp_assocs_seq_stop, |
| 351 | .show = sctp_assocs_seq_show, |
| 352 | }; |
| 353 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | /* Initialize the seq file operations for 'assocs' object. */ |
| 355 | static int sctp_assocs_seq_open(struct inode *inode, struct file *file) |
| 356 | { |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 357 | return seq_open(file, &sctp_assoc_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | } |
| 359 | |
Arjan van de Ven | da7071d | 2007-02-12 00:55:36 -0800 | [diff] [blame] | 360 | static const struct file_operations sctp_assocs_seq_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | .open = sctp_assocs_seq_open, |
| 362 | .read = seq_read, |
| 363 | .llseek = seq_lseek, |
Vladislav Yasevich | bca735b | 2005-06-13 15:11:57 -0700 | [diff] [blame] | 364 | .release = seq_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | }; |
| 366 | |
| 367 | /* Set up the proc fs entry for 'assocs' object. */ |
| 368 | int __init sctp_assocs_proc_init(void) |
| 369 | { |
| 370 | struct proc_dir_entry *p; |
| 371 | |
| 372 | p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp); |
| 373 | if (!p) |
| 374 | return -ENOMEM; |
| 375 | |
| 376 | p->proc_fops = &sctp_assocs_seq_fops; |
| 377 | |
| 378 | return 0; |
| 379 | } |
| 380 | |
| 381 | /* Cleanup the proc fs entry for 'assocs' object. */ |
| 382 | void sctp_assocs_proc_exit(void) |
| 383 | { |
| 384 | remove_proc_entry("assocs", proc_net_sctp); |
| 385 | } |