xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Browse Source
This commit is contained in:
David S. Miller
2010-05-02 21:43:40 -07:00
parent 47d29646a2 1183f3838c
commit 7ef527377b
30 changed files with 1270 additions and 147 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
net/sctp/associola.c
View File

@@ -1194,8 +1194,10 @@ void sctp_assoc_update(struct sctp_association *asoc,
/* Remove any peer addresses not present in the new association. */
list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
trans = list_entry(pos, struct sctp_transport, transports);
if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr))
sctp_assoc_del_peer(asoc, &trans->ipaddr);
if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr)) {
sctp_assoc_rm_peer(asoc, trans);
continue;
}
if (asoc->state >= SCTP_STATE_ESTABLISHED)
sctp_transport_reset(trans);

1
net/sctp/endpointola.c
View File

@@ -144,6 +144,7 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
/* Use SCTP specific send buffer space queues. */
ep->sndbuf_policy = sctp_sndbuf_policy;
sk->sk_data_ready = sctp_data_ready;
sk->sk_write_space = sctp_write_space;
sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);

94
net/sctp/sm_make_chunk.c
View File

@@ -108,7 +108,7 @@ static const struct sctp_paramhdr prsctp_param = {
cpu_to_be16(sizeof(struct sctp_paramhdr)),
};
/* A helper to initialize to initialize an op error inside a
/* A helper to initialize an op error inside a
* provided chunk, as most cause codes will be embedded inside an
* abort chunk.
*/
@@ -125,6 +125,29 @@ void sctp_init_cause(struct sctp_chunk *chunk, __be16 cause_code,
chunk->subh.err_hdr = sctp_addto_chunk(chunk, sizeof(sctp_errhdr_t), &err);
}
/* A helper to initialize an op error inside a
* provided chunk, as most cause codes will be embedded inside an
* abort chunk. Differs from sctp_init_cause in that it won't oops
* if there isn't enough space in the op error chunk
*/
int sctp_init_cause_fixed(struct sctp_chunk *chunk, __be16 cause_code,
size_t paylen)
{
sctp_errhdr_t err;
__u16 len;
/* Cause code constants are now defined in network order. */
err.cause = cause_code;
len = sizeof(sctp_errhdr_t) + paylen;
err.length = htons(len);
if (skb_tailroom(chunk->skb) > len)
return -ENOSPC;
chunk->subh.err_hdr = sctp_addto_chunk_fixed(chunk,
sizeof(sctp_errhdr_t),
&err);
return 0;
}
/* 3.3.2 Initiation (INIT) (1)
*
* This chunk is used to initiate a SCTP association between two
@@ -208,7 +231,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
sp = sctp_sk(asoc->base.sk);
num_types = sp->pf->supported_addrs(sp, types);
chunksize = sizeof(init) + addrs_len + SCTP_SAT_LEN(num_types);
chunksize = sizeof(init) + addrs_len;
chunksize += WORD_ROUND(SCTP_SAT_LEN(num_types));
chunksize += sizeof(ecap_param);
if (sctp_prsctp_enable)
@@ -238,14 +262,14 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
/* Add HMACS parameter length if any were defined */
auth_hmacs = (sctp_paramhdr_t *)asoc->c.auth_hmacs;
if (auth_hmacs->length)
chunksize += ntohs(auth_hmacs->length);
chunksize += WORD_ROUND(ntohs(auth_hmacs->length));
else
auth_hmacs = NULL;
/* Add CHUNKS parameter length */
auth_chunks = (sctp_paramhdr_t *)asoc->c.auth_chunks;
if (auth_chunks->length)
chunksize += ntohs(auth_chunks->length);
chunksize += WORD_ROUND(ntohs(auth_chunks->length));
else
auth_chunks = NULL;
@@ -255,7 +279,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
/* If we have any extensions to report, account for that */
if (num_ext)
chunksize += sizeof(sctp_supported_ext_param_t) + num_ext;
chunksize += WORD_ROUND(sizeof(sctp_supported_ext_param_t) +
num_ext);
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
@@ -397,13 +422,13 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
auth_hmacs = (sctp_paramhdr_t *)asoc->c.auth_hmacs;
if (auth_hmacs->length)
chunksize += ntohs(auth_hmacs->length);
chunksize += WORD_ROUND(ntohs(auth_hmacs->length));
else
auth_hmacs = NULL;
auth_chunks = (sctp_paramhdr_t *)asoc->c.auth_chunks;
if (auth_chunks->length)
chunksize += ntohs(auth_chunks->length);
chunksize += WORD_ROUND(ntohs(auth_chunks->length));
else
auth_chunks = NULL;
@@ -412,7 +437,8 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
}
if (num_ext)
chunksize += sizeof(sctp_supported_ext_param_t) + num_ext;
chunksize += WORD_ROUND(sizeof(sctp_supported_ext_param_t) +
num_ext);
/* Now allocate and fill out the chunk. */
retval = sctp_make_chunk(asoc, SCTP_CID_INIT_ACK, 0, chunksize);
@@ -1129,6 +1155,24 @@ nodata:
return retval;
}
/* Create an Operation Error chunk of a fixed size,
* specifically, max(asoc->pathmtu, SCTP_DEFAULT_MAXSEGMENT)
* This is a helper function to allocate an error chunk for
* for those invalid parameter codes in which we may not want
* to report all the errors, if the incomming chunk is large
*/
static inline struct sctp_chunk *sctp_make_op_error_fixed(
const struct sctp_association *asoc,
const struct sctp_chunk *chunk)
{
size_t size = asoc ? asoc->pathmtu : 0;
if (!size)
size = SCTP_DEFAULT_MAXSEGMENT;
return sctp_make_op_error_space(asoc, chunk, size);
}
/* Create an Operation Error chunk. */
struct sctp_chunk *sctp_make_op_error(const struct sctp_association *asoc,
const struct sctp_chunk *chunk,
@@ -1371,6 +1415,18 @@ void *sctp_addto_chunk(struct sctp_chunk *chunk, int len, const void *data)
return target;
}
/* Append bytes to the end of a chunk. Returns NULL if there isn't sufficient
* space in the chunk
*/
void *sctp_addto_chunk_fixed(struct sctp_chunk *chunk,
int len, const void *data)
{
if (skb_tailroom(chunk->skb) > len)
return sctp_addto_chunk(chunk, len, data);
else
return NULL;
}
/* Append bytes from user space to the end of a chunk. Will panic if
* chunk is not big enough.
* Returns a kernel err value.
@@ -1974,13 +2030,12 @@ static sctp_ierror_t sctp_process_unk_param(const struct sctp_association *asoc,
* returning multiple unknown parameters.
*/
if (NULL == *errp)
*errp = sctp_make_op_error_space(asoc, chunk,
ntohs(chunk->chunk_hdr->length));
*errp = sctp_make_op_error_fixed(asoc, chunk);
if (*errp) {
sctp_init_cause(*errp, SCTP_ERROR_UNKNOWN_PARAM,
sctp_init_cause_fixed(*errp, SCTP_ERROR_UNKNOWN_PARAM,
WORD_ROUND(ntohs(param.p->length)));
sctp_addto_chunk(*errp,
sctp_addto_chunk_fixed(*errp,
WORD_ROUND(ntohs(param.p->length)),
param.v);
} else {
@@ -3315,21 +3370,6 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
sctp_chunk_free(asconf);
asoc->addip_last_asconf = NULL;
/* Send the next asconf chunk from the addip chunk queue. */
if (!list_empty(&asoc->addip_chunk_list)) {
struct list_head *entry = asoc->addip_chunk_list.next;
asconf = list_entry(entry, struct sctp_chunk, list);
list_del_init(entry);
/* Hold the chunk until an ASCONF_ACK is received. */
sctp_chunk_hold(asconf);
if (sctp_primitive_ASCONF(asoc, asconf))
sctp_chunk_free(asconf);
else
asoc->addip_last_asconf = asconf;
}
return retval;
}

26
net/sctp/sm_sideeffect.c
View File

@@ -962,6 +962,29 @@ static int sctp_cmd_send_msg(struct sctp_association *asoc,
}
/* Sent the next ASCONF packet currently stored in the association.
* This happens after the ASCONF_ACK was succeffully processed.
*/
static void sctp_cmd_send_asconf(struct sctp_association *asoc)
{
/* Send the next asconf chunk from the addip chunk
* queue.
*/
if (!list_empty(&asoc->addip_chunk_list)) {
struct list_head *entry = asoc->addip_chunk_list.next;
struct sctp_chunk *asconf = list_entry(entry,
struct sctp_chunk, list);
list_del_init(entry);
/* Hold the chunk until an ASCONF_ACK is received. */
sctp_chunk_hold(asconf);
if (sctp_primitive_ASCONF(asoc, asconf))
sctp_chunk_free(asconf);
else
asoc->addip_last_asconf = asconf;
}
}
/* 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
@@ -1617,6 +1640,9 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
}
error = sctp_cmd_send_msg(asoc, cmd->obj.msg);
break;
case SCTP_CMD_SEND_NEXT_ASCONF:
sctp_cmd_send_asconf(asoc);
break;
default:
printk(KERN_WARNING "Impossible command: %u, %p\n",
cmd->verb, cmd->obj.ptr);

8
net/sctp/sm_statefuns.c
View File

@@ -3676,8 +3676,14 @@ sctp_disposition_t sctp_sf_do_asconf_ack(const struct sctp_endpoint *ep,
SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
if (!sctp_process_asconf_ack((struct sctp_association *)asoc,
asconf_ack))
asconf_ack)) {
/* Successfully processed ASCONF_ACK. We can
* release the next asconf if we have one.
*/
sctp_add_cmd_sf(commands, SCTP_CMD_SEND_NEXT_ASCONF,
SCTP_NULL());
return SCTP_DISPOSITION_CONSUME;
}
abort = sctp_make_abort(asoc, asconf_ack,
sizeof(sctp_errhdr_t));

17
net/sctp/socket.c
View File

@@ -3719,9 +3719,9 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
sp->hmac = NULL;
SCTP_DBG_OBJCNT_INC(sock);
percpu_counter_inc(&sctp_sockets_allocated);
local_bh_disable();
percpu_counter_inc(&sctp_sockets_allocated);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
local_bh_enable();
@@ -3738,8 +3738,8 @@ SCTP_STATIC void sctp_destroy_sock(struct sock *sk)
/* Release our hold on the endpoint. */
ep = sctp_sk(sk)->ep;
sctp_endpoint_free(ep);
percpu_counter_dec(&sctp_sockets_allocated);
local_bh_disable();
percpu_counter_dec(&sctp_sockets_allocated);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
local_bh_enable();
}
@@ -6185,6 +6185,19 @@ do_nonblock:
goto out;
}
void sctp_data_ready(struct sock *sk, int len)
{
struct socket_wq *wq;
rcu_read_lock();
wq = rcu_dereference(sk->sk_wq);
if (wq_has_sleeper(wq))
wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
POLLRDNORM | POLLRDBAND);
sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
rcu_read_unlock();
}
/* If socket sndbuf has changed, wake up all per association waiters. */
void sctp_write_space(struct sock *sk)
{