[SCTP] Extend the info exported via /proc/net/sctp to support netstat for SCTP.
Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladislav Yasevich
David S. Miller
parent
0fd9a65a76
commit
bca735bd0d
190
net/sctp/proc.c
190
net/sctp/proc.c
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@ -132,14 +132,25 @@ void sctp_snmp_proc_exit(void)
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static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb)
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{
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struct list_head *pos;
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struct sctp_association *asoc;
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struct sctp_sockaddr_entry *laddr;
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union sctp_addr *addr;
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struct sctp_transport *peer;
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union sctp_addr *addr, *primary = NULL;
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struct sctp_af *af;
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if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
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asoc = sctp_assoc(epb);
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peer = asoc->peer.primary_path;
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primary = &peer->saddr;
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}
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list_for_each(pos, &epb->bind_addr.address_list) {
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laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
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addr = (union sctp_addr *)&laddr->a;
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af = sctp_get_af_specific(addr->sa.sa_family);
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if (primary && af->cmp_addr(addr, primary)) {
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seq_printf(seq, "*");
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}
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af->seq_dump_addr(seq, addr);
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}
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}
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@ -149,17 +160,54 @@ static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_associa
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{
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struct list_head *pos;
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struct sctp_transport *transport;
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union sctp_addr *addr;
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union sctp_addr *addr, *primary;
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struct sctp_af *af;
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primary = &(assoc->peer.primary_addr);
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list_for_each(pos, &assoc->peer.transport_addr_list) {
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transport = list_entry(pos, struct sctp_transport, transports);
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addr = (union sctp_addr *)&transport->ipaddr;
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af = sctp_get_af_specific(addr->sa.sa_family);
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if (af->cmp_addr(addr, primary)) {
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seq_printf(seq, "*");
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}
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af->seq_dump_addr(seq, addr);
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}
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}
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static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
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{
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if (*pos > sctp_ep_hashsize)
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return NULL;
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if (*pos < 0)
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*pos = 0;
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if (*pos == 0)
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seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT UID INODE LADDRS\n");
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++*pos;
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return (void *)pos;
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}
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static void sctp_eps_seq_stop(struct seq_file *seq, void *v)
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{
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return;
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}
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static void * sctp_eps_seq_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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if (*pos > sctp_ep_hashsize)
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return NULL;
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++*pos;
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return pos;
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}
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/* Display sctp endpoints (/proc/net/sctp/eps). */
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static int sctp_eps_seq_show(struct seq_file *seq, void *v)
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{
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@ -167,38 +215,50 @@ static int sctp_eps_seq_show(struct seq_file *seq, void *v)
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struct sctp_ep_common *epb;
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struct sctp_endpoint *ep;
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struct sock *sk;
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int hash;
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int hash = *(int *)v;
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seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT LADDRS\n");
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for (hash = 0; hash < sctp_ep_hashsize; hash++) {
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head = &sctp_ep_hashtable[hash];
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read_lock(&head->lock);
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for (epb = head->chain; epb; epb = epb->next) {
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ep = sctp_ep(epb);
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sk = epb->sk;
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seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d ", ep, sk,
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sctp_sk(sk)->type, sk->sk_state, hash,
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epb->bind_addr.port);
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sctp_seq_dump_local_addrs(seq, epb);
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seq_printf(seq, "\n");
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}
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read_unlock(&head->lock);
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if (hash > sctp_ep_hashsize)
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return -ENOMEM;
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head = &sctp_ep_hashtable[hash-1];
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sctp_local_bh_disable();
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read_lock(&head->lock);
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for (epb = head->chain; epb; epb = epb->next) {
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ep = sctp_ep(epb);
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sk = epb->sk;
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seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
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sctp_sk(sk)->type, sk->sk_state, hash-1,
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epb->bind_addr.port,
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sock_i_uid(sk), sock_i_ino(sk));
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sctp_seq_dump_local_addrs(seq, epb);
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seq_printf(seq, "\n");
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}
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read_unlock(&head->lock);
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sctp_local_bh_enable();
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return 0;
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}
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static struct seq_operations sctp_eps_ops = {
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.start = sctp_eps_seq_start,
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.next = sctp_eps_seq_next,
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.stop = sctp_eps_seq_stop,
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.show = sctp_eps_seq_show,
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};
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/* Initialize the seq file operations for 'eps' object. */
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static int sctp_eps_seq_open(struct inode *inode, struct file *file)
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{
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return single_open(file, sctp_eps_seq_show, NULL);
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return seq_open(file, &sctp_eps_ops);
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}
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static struct file_operations sctp_eps_seq_fops = {
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.open = sctp_eps_seq_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.release = seq_release,
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};
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/* Set up the proc fs entry for 'eps' object. */
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@ -221,6 +281,40 @@ void sctp_eps_proc_exit(void)
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remove_proc_entry("eps", proc_net_sctp);
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}
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static void * sctp_assocs_seq_start(struct seq_file *seq, loff_t *pos)
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{
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if (*pos > sctp_assoc_hashsize)
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return NULL;
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if (*pos < 0)
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*pos = 0;
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if (*pos == 0)
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seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
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"RPORT LADDRS <-> RADDRS\n");
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++*pos;
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return (void *)pos;
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}
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static void sctp_assocs_seq_stop(struct seq_file *seq, void *v)
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{
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return;
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}
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static void * sctp_assocs_seq_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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if (*pos > sctp_assoc_hashsize)
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return NULL;
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++*pos;
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return pos;
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}
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/* Display sctp associations (/proc/net/sctp/assocs). */
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static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
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{
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@ -228,43 +322,57 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
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struct sctp_ep_common *epb;
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struct sctp_association *assoc;
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struct sock *sk;
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int hash;
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int hash = *(int *)v;
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seq_printf(seq, " ASSOC SOCK STY SST ST HBKT LPORT RPORT "
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"LADDRS <-> RADDRS\n");
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for (hash = 0; hash < sctp_assoc_hashsize; hash++) {
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head = &sctp_assoc_hashtable[hash];
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read_lock(&head->lock);
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for (epb = head->chain; epb; epb = epb->next) {
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assoc = sctp_assoc(epb);
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sk = epb->sk;
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seq_printf(seq,
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"%8p %8p %-3d %-3d %-2d %-4d %-5d %-5d ",
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assoc, sk, sctp_sk(sk)->type, sk->sk_state,
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assoc->state, hash, epb->bind_addr.port,
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assoc->peer.port);
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sctp_seq_dump_local_addrs(seq, epb);
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seq_printf(seq, "<-> ");
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sctp_seq_dump_remote_addrs(seq, assoc);
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seq_printf(seq, "\n");
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}
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read_unlock(&head->lock);
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if (hash > sctp_assoc_hashsize)
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return -ENOMEM;
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head = &sctp_assoc_hashtable[hash-1];
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sctp_local_bh_disable();
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read_lock(&head->lock);
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for (epb = head->chain; epb; epb = epb->next) {
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assoc = sctp_assoc(epb);
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sk = epb->sk;
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seq_printf(seq,
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"%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
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assoc, sk, sctp_sk(sk)->type, sk->sk_state,
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assoc->state, hash-1, assoc->assoc_id,
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(sk->sk_rcvbuf - assoc->rwnd),
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assoc->sndbuf_used,
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sock_i_uid(sk), sock_i_ino(sk),
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epb->bind_addr.port,
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assoc->peer.port);
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seq_printf(seq, " ");
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sctp_seq_dump_local_addrs(seq, epb);
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seq_printf(seq, "<-> ");
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sctp_seq_dump_remote_addrs(seq, assoc);
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seq_printf(seq, "\n");
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}
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read_unlock(&head->lock);
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sctp_local_bh_enable();
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return 0;
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}
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static struct seq_operations sctp_assoc_ops = {
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.start = sctp_assocs_seq_start,
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.next = sctp_assocs_seq_next,
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.stop = sctp_assocs_seq_stop,
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.show = sctp_assocs_seq_show,
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};
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/* Initialize the seq file operations for 'assocs' object. */
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static int sctp_assocs_seq_open(struct inode *inode, struct file *file)
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{
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return single_open(file, sctp_assocs_seq_show, NULL);
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return seq_open(file, &sctp_assoc_ops);
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}
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static struct file_operations sctp_assocs_seq_fops = {
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.open = sctp_assocs_seq_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.release = seq_release,
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};
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/* Set up the proc fs entry for 'assocs' object. */
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