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Date: Sat, 4 Aug 2012 15:34:32 -0600
From: Jan Ariyasu <jan.ariyasu@...il.com>
To: Vlad Yasevich <vyasevich@...il.com>,
"David S. Miller" <davem@...emloft.net>,
linux-sctp@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Jan Ariyasu <jan.ariyasu@...com>
Subject: [PATCH 12/13] SCTP: Enable chunk-auth verification (RFC4895).
This patch replaces the global parameter sctp_auth_enable with
the per-namespace parameter stored in struct net.
Signed-off-by: Jan Ariyasu <jan.ariyasu@...com>
---
net/sctp/endpointola.c | 4 +++-
net/sctp/sm_statetable.c | 11 +++++++----
net/sctp/socket.c | 32 ++++++++++++++++++++++++--------
3 files changed, 34 insertions(+), 13 deletions(-)
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 750df47..5fa20a1 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -70,12 +70,14 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
struct sctp_shared_key *null_key;
int err;
struct net *net = sock_net(sk);
+ struct sctp_net_params *net_params =
+ sctp_get_params(net);
ep->digest = kzalloc(SCTP_SIGNATURE_SIZE, gfp);
if (!ep->digest)
return NULL;
- if (sctp_auth_enable) {
+ if (net_params->auth_enable) {
/* Allocate space for HMACS and CHUNKS authentication
* variables. There are arrays that we encode directly
* into parameters to make the rest of the operations easier.
diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c
index c249e59..5177130 100644
--- a/net/sctp/sm_statetable.c
+++ b/net/sctp/sm_statetable.c
@@ -59,7 +59,8 @@ other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
static const sctp_sm_table_entry_t
timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
-static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
+static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
+ sctp_cid_t cid,
sctp_state_t state);
@@ -89,7 +90,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(struct net *net,
{
switch (event_type) {
case SCTP_EVENT_T_CHUNK:
- return sctp_chunk_event_lookup(event_subtype.chunk, state);
+ return sctp_chunk_event_lookup(net, event_subtype.chunk, state);
case SCTP_EVENT_T_TIMEOUT:
return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
timeout_event_table);
@@ -907,9 +908,11 @@ static const sctp_sm_table_entry_t timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][S
TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
};
-static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
+static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
+ sctp_cid_t cid,
sctp_state_t state)
{
+ struct sctp_net_params *net_params = sctp_get_params(net);
if (state > SCTP_STATE_MAX)
return &bug;
@@ -929,7 +932,7 @@ static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
return &addip_chunk_event_table[1][state];
}
- if (sctp_auth_enable) {
+ if (net_params->auth_enable) {
if (cid == SCTP_CID_AUTH)
return &auth_chunk_event_table[0][state];
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 9712ea5..e8148a0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3300,8 +3300,10 @@ static int sctp_setsockopt_auth_chunk(struct sock *sk,
unsigned int optlen)
{
struct sctp_authchunk val;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (optlen != sizeof(struct sctp_authchunk))
@@ -3334,8 +3336,10 @@ static int sctp_setsockopt_hmac_ident(struct sock *sk,
struct sctp_hmacalgo *hmacs;
u32 idents;
int err;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (optlen < sizeof(struct sctp_hmacalgo))
@@ -3371,8 +3375,10 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
struct sctp_authkey *authkey;
struct sctp_association *asoc;
int ret;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (optlen <= sizeof(struct sctp_authkey))
@@ -3442,8 +3448,10 @@ static int sctp_setsockopt_del_key(struct sock *sk,
{
struct sctp_authkeyid val;
struct sctp_association *asoc;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (optlen != sizeof(struct sctp_authkeyid))
@@ -5326,8 +5334,10 @@ static int sctp_getsockopt_hmac_ident(struct sock *sk, int len,
struct sctp_hmac_algo_param *hmacs;
__u16 data_len = 0;
u32 num_idents;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
hmacs = sctp_sk(sk)->ep->auth_hmacs_list;
@@ -5353,8 +5363,10 @@ static int sctp_getsockopt_active_key(struct sock *sk, int len,
{
struct sctp_authkeyid val;
struct sctp_association *asoc;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (len < sizeof(struct sctp_authkeyid))
@@ -5389,8 +5401,10 @@ static int sctp_getsockopt_peer_auth_chunks(struct sock *sk, int len,
struct sctp_chunks_param *ch;
u32 num_chunks = 0;
char __user *to;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (len < sizeof(struct sctp_authchunks))
@@ -5432,8 +5446,10 @@ static int sctp_getsockopt_local_auth_chunks(struct sock *sk, int len,
struct sctp_chunks_param *ch;
u32 num_chunks = 0;
char __user *to;
+ struct sctp_net_params *net_params =
+ sctp_get_params(sock_net(sk));
- if (!sctp_auth_enable)
+ if (!net_params->auth_enable)
return -EACCES;
if (len < sizeof(struct sctp_authchunks))
--
1.7.9.5
--
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