diff options
Diffstat (limited to 'net/sctp/socket.c')
| -rw-r--r-- | net/sctp/socket.c | 95 |
1 files changed, 70 insertions, 25 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index deb82e35a10..6766913a53e 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -658,11 +658,15 @@ static int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt) goto err_bindx_rem; } - if (sa_addr->v4.sin_port != htons(bp->port)) { + if (sa_addr->v4.sin_port && + sa_addr->v4.sin_port != htons(bp->port)) { retval = -EINVAL; goto err_bindx_rem; } + if (!sa_addr->v4.sin_port) + sa_addr->v4.sin_port = htons(bp->port); + /* FIXME - There is probably a need to check if sk->sk_saddr and * sk->sk_rcv_addr are currently set to one of the addresses to * be removed. This is something which needs to be looked into @@ -1492,7 +1496,7 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, struct sctp_chunk *chunk; union sctp_addr to; struct sockaddr *msg_name = NULL; - struct sctp_sndrcvinfo default_sinfo = { 0 }; + struct sctp_sndrcvinfo default_sinfo; struct sctp_sndrcvinfo *sinfo; struct sctp_initmsg *sinit; sctp_assoc_t associd = 0; @@ -1756,6 +1760,7 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, /* If the user didn't specify SNDRCVINFO, make up one with * some defaults. */ + memset(&default_sinfo, 0, sizeof(default_sinfo)); default_sinfo.sinfo_stream = asoc->default_stream; default_sinfo.sinfo_flags = asoc->default_flags; default_sinfo.sinfo_ppid = asoc->default_ppid; @@ -1786,12 +1791,10 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, goto out_free; } - if (sinfo) { - /* Check for invalid stream. */ - if (sinfo->sinfo_stream >= asoc->c.sinit_num_ostreams) { - err = -EINVAL; - goto out_free; - } + /* Check for invalid stream. */ + if (sinfo->sinfo_stream >= asoc->c.sinit_num_ostreams) { + err = -EINVAL; + goto out_free; } timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); @@ -2283,7 +2286,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params, trans->param_flags = (trans->param_flags & ~SPP_PMTUD) | pmtud_change; if (update) { - sctp_transport_pmtu(trans); + sctp_transport_pmtu(trans, sctp_opt2sk(sp)); sctp_assoc_sync_pmtu(asoc); } } else if (asoc) { @@ -3215,14 +3218,9 @@ static int sctp_setsockopt_hmac_ident(struct sock *sk, if (optlen < sizeof(struct sctp_hmacalgo)) return -EINVAL; - hmacs = kmalloc(optlen, GFP_KERNEL); - if (!hmacs) - return -ENOMEM; - - if (copy_from_user(hmacs, optval, optlen)) { - err = -EFAULT; - goto out; - } + hmacs= memdup_user(optval, optlen); + if (IS_ERR(hmacs)) + return PTR_ERR(hmacs); idents = hmacs->shmac_num_idents; if (idents == 0 || idents > SCTP_AUTH_NUM_HMACS || @@ -3257,14 +3255,9 @@ static int sctp_setsockopt_auth_key(struct sock *sk, if (optlen <= sizeof(struct sctp_authkey)) return -EINVAL; - authkey = kmalloc(optlen, GFP_KERNEL); - if (!authkey) - return -ENOMEM; - - if (copy_from_user(authkey, optval, optlen)) { - ret = -EFAULT; - goto out; - } + authkey= memdup_user(optval, optlen); + if (IS_ERR(authkey)) + return PTR_ERR(authkey); if (authkey->sca_keylength > optlen - sizeof(struct sctp_authkey)) { ret = -EINVAL; @@ -5283,6 +5276,55 @@ static int sctp_getsockopt_assoc_number(struct sock *sk, int len, return 0; } +/* + * 8.2.6. Get the Current Identifiers of Associations + * (SCTP_GET_ASSOC_ID_LIST) + * + * This option gets the current list of SCTP association identifiers of + * the SCTP associations handled by a one-to-many style socket. + */ +static int sctp_getsockopt_assoc_ids(struct sock *sk, int len, + char __user *optval, int __user *optlen) +{ + struct sctp_sock *sp = sctp_sk(sk); + struct sctp_association *asoc; + struct sctp_assoc_ids *ids; + u32 num = 0; + + if (sctp_style(sk, TCP)) + return -EOPNOTSUPP; + + if (len < sizeof(struct sctp_assoc_ids)) + return -EINVAL; + + list_for_each_entry(asoc, &(sp->ep->asocs), asocs) { + num++; + } + + if (len < sizeof(struct sctp_assoc_ids) + sizeof(sctp_assoc_t) * num) + return -EINVAL; + + len = sizeof(struct sctp_assoc_ids) + sizeof(sctp_assoc_t) * num; + + ids = kmalloc(len, GFP_KERNEL); + if (unlikely(!ids)) + return -ENOMEM; + + ids->gaids_number_of_ids = num; + num = 0; + list_for_each_entry(asoc, &(sp->ep->asocs), asocs) { + ids->gaids_assoc_id[num++] = asoc->assoc_id; + } + + if (put_user(len, optlen) || copy_to_user(optval, ids, len)) { + kfree(ids); + return -EFAULT; + } + + kfree(ids); + return 0; +} + SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { @@ -5415,6 +5457,9 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname, case SCTP_GET_ASSOC_NUMBER: retval = sctp_getsockopt_assoc_number(sk, len, optval, optlen); break; + case SCTP_GET_ASSOC_ID_LIST: + retval = sctp_getsockopt_assoc_ids(sk, len, optval, optlen); + break; default: retval = -ENOPROTOOPT; break; |