diff options
| -rw-r--r-- | include/net/sctp/command.h | 3 | ||||
| -rw-r--r-- | include/net/sctp/structs.h | 1 | ||||
| -rw-r--r-- | net/sctp/chunk.c | 13 | ||||
| -rw-r--r-- | net/sctp/sm_sideeffect.c | 29 | ||||
| -rw-r--r-- | net/sctp/sm_statefuns.c | 4 | ||||
| -rw-r--r-- | net/sctp/socket.c | 26 |
6 files changed, 61 insertions, 15 deletions
diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h index 3b966802e05d..8be5135ff7aa 100644 --- a/include/net/sctp/command.h +++ b/include/net/sctp/command.h @@ -106,6 +106,7 @@ typedef enum { SCTP_CMD_ASSOC_SHKEY, /* generate the association shared keys */ SCTP_CMD_T1_RETRAN, /* Mark for retransmission after T1 timeout */ SCTP_CMD_UPDATE_INITTAG, /* Update peer inittag */ + SCTP_CMD_SEND_MSG, /* Send the whole use message */ SCTP_CMD_LAST } sctp_verb_t; @@ -139,6 +140,7 @@ typedef union { struct sctp_ulpevent *ulpevent; struct sctp_packet *packet; sctp_sackhdr_t *sackh; + struct sctp_datamsg *msg; } sctp_arg_t; /* We are simulating ML type constructors here. @@ -188,6 +190,7 @@ SCTP_ARG_CONSTRUCTOR(PEER_INIT, sctp_init_chunk_t *, init) SCTP_ARG_CONSTRUCTOR(ULPEVENT, struct sctp_ulpevent *, ulpevent) SCTP_ARG_CONSTRUCTOR(PACKET, struct sctp_packet *, packet) SCTP_ARG_CONSTRUCTOR(SACKH, sctp_sackhdr_t *, sackh) +SCTP_ARG_CONSTRUCTOR(DATAMSG, struct sctp_datamsg *, msg) typedef struct { sctp_arg_t obj; diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index edfcacf3250e..97024faaa08f 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -643,6 +643,7 @@ struct sctp_datamsg { struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *, struct sctp_sndrcvinfo *, struct msghdr *, int len); +void sctp_datamsg_free(struct sctp_datamsg *); void sctp_datamsg_put(struct sctp_datamsg *); void sctp_chunk_fail(struct sctp_chunk *, int error); int sctp_chunk_abandoned(struct sctp_chunk *); diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c index 7acaf15679b6..645577ddc33e 100644 --- a/net/sctp/chunk.c +++ b/net/sctp/chunk.c @@ -73,6 +73,19 @@ SCTP_STATIC struct sctp_datamsg *sctp_datamsg_new(gfp_t gfp) return msg; } +void sctp_datamsg_free(struct sctp_datamsg *msg) +{ + struct sctp_chunk *chunk; + + /* This doesn't have to be a _safe vairant because + * sctp_chunk_free() only drops the refs. + */ + list_for_each_entry(chunk, &msg->chunks, frag_list) + sctp_chunk_free(chunk); + + sctp_datamsg_put(msg); +} + /* Final destructruction of datamsg memory. */ static void sctp_datamsg_destroy(struct sctp_datamsg *msg) { diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index 86426aac1600..238adf7978e9 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -931,6 +931,27 @@ static void sctp_cmd_t1_timer_update(struct sctp_association *asoc, } +/* Send the whole message, chunk by chunk, to the outqueue. + * This way the whole message is queued up and bundling if + * encouraged for small fragments. + */ +static int sctp_cmd_send_msg(struct sctp_association *asoc, + struct sctp_datamsg *msg) +{ + struct sctp_chunk *chunk; + int error = 0; + + list_for_each_entry(chunk, &msg->chunks, frag_list) { + error = sctp_outq_tail(&asoc->outqueue, chunk); + if (error) + break; + } + + return error; +} + + + /* These three macros allow us to pull the debugging code out of the * main flow of sctp_do_sm() to keep attention focused on the real * functionality there. @@ -1575,7 +1596,13 @@ static int sctp_cmd_interpreter(sctp_event_t event_type, case SCTP_CMD_UPDATE_INITTAG: asoc->peer.i.init_tag = cmd->obj.u32; break; - + case SCTP_CMD_SEND_MSG: + if (!asoc->outqueue.cork) { + sctp_outq_cork(&asoc->outqueue); + local_cork = 1; + } + error = sctp_cmd_send_msg(asoc, cmd->obj.msg); + break; default: printk(KERN_WARNING "Impossible command: %u, %p\n", cmd->verb, cmd->obj.ptr); diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 50225dd2e6dc..910926906a3a 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -4555,9 +4555,9 @@ sctp_disposition_t sctp_sf_do_prm_send(const struct sctp_endpoint *ep, void *arg, sctp_cmd_seq_t *commands) { - struct sctp_chunk *chunk = arg; + struct sctp_datamsg *msg = arg; - sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(chunk)); + sctp_add_cmd_sf(commands, SCTP_CMD_SEND_MSG, SCTP_DATAMSG(msg)); return SCTP_DISPOSITION_CONSUME; } diff --git a/net/sctp/socket.c b/net/sctp/socket.c index a7e544e3f28a..95a5623d79a0 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1814,20 +1814,22 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, sctp_set_owner_w(chunk); chunk->transport = chunk_tp; - - /* Send it to the lower layers. Note: all chunks - * must either fail or succeed. The lower layer - * works that way today. Keep it that way or this - * breaks. - */ - err = sctp_primitive_SEND(asoc, chunk); - /* Did the lower layer accept the chunk? */ - if (err) - sctp_chunk_free(chunk); - SCTP_DEBUG_PRINTK("We sent primitively.\n"); } - sctp_datamsg_put(datamsg); + /* Send it to the lower layers. Note: all chunks + * must either fail or succeed. The lower layer + * works that way today. Keep it that way or this + * breaks. + */ + err = sctp_primitive_SEND(asoc, datamsg); + /* Did the lower layer accept the chunk? */ + if (err) + sctp_datamsg_free(datamsg); + else + sctp_datamsg_put(datamsg); + + SCTP_DEBUG_PRINTK("We sent primitively.\n"); + if (err) goto out_free; else |
