diff options
author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2008-12-08 01:15:55 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-12-08 01:15:55 -0800 |
commit | 192b27ff35bad4cf76cc4239419e9f805935e4f8 (patch) | |
tree | 8ad3bdb36f4cf7ef4f15c737c22f3b4d6b9578d3 /net | |
parent | 6eb55d172b5f6de65afdae6285f8d732e4785bf7 (diff) | |
download | linux-192b27ff35bad4cf76cc4239419e9f805935e4f8.tar.gz linux-192b27ff35bad4cf76cc4239419e9f805935e4f8.tar.bz2 linux-192b27ff35bad4cf76cc4239419e9f805935e4f8.zip |
dccp: Integration of dynamic feature activation - part 2 (server side)
This patch integrates the activation of features at the end of negotiation
into the server-side code.
Note regarding the removal of 'const':
--------------------------------------
The 'const' attribute has been removed from 'dreq' since dccp_activate_values()
needs to operate on dreq's feature list. Part of the activation is to remove
those options from the list that have already been confirmed, hence it is not
purely read-only.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/dccp/minisocks.c | 42 |
1 files changed, 12 insertions, 30 deletions
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c index ed61bc58e41e..308b6b928c3d 100644 --- a/net/dccp/minisocks.c +++ b/net/dccp/minisocks.c @@ -111,7 +111,7 @@ struct sock *dccp_create_openreq_child(struct sock *sk, struct sock *newsk = inet_csk_clone(sk, req, GFP_ATOMIC); if (newsk != NULL) { - const struct dccp_request_sock *dreq = dccp_rsk(req); + struct dccp_request_sock *dreq = dccp_rsk(req); struct inet_connection_sock *newicsk = inet_csk(newsk); struct dccp_sock *newdp = dccp_sk(newsk); struct dccp_minisock *newdmsk = dccp_msk(newsk); @@ -125,35 +125,6 @@ struct sock *dccp_create_openreq_child(struct sock *sk, newicsk->icsk_rto = DCCP_TIMEOUT_INIT; INIT_LIST_HEAD(&newdp->dccps_featneg); - if (dccp_feat_clone(sk, newsk)) - goto out_free; - - if (newdmsk->dccpms_send_ack_vector) { - newdp->dccps_hc_rx_ackvec = - dccp_ackvec_alloc(GFP_ATOMIC); - if (unlikely(newdp->dccps_hc_rx_ackvec == NULL)) - goto out_free; - } - - newdp->dccps_hc_rx_ccid = - ccid_hc_rx_new(newdmsk->dccpms_rx_ccid, - newsk, GFP_ATOMIC); - newdp->dccps_hc_tx_ccid = - ccid_hc_tx_new(newdmsk->dccpms_tx_ccid, - newsk, GFP_ATOMIC); - if (unlikely(newdp->dccps_hc_rx_ccid == NULL || - newdp->dccps_hc_tx_ccid == NULL)) { - dccp_ackvec_free(newdp->dccps_hc_rx_ackvec); - ccid_hc_rx_delete(newdp->dccps_hc_rx_ccid, newsk); - ccid_hc_tx_delete(newdp->dccps_hc_tx_ccid, newsk); -out_free: - /* It is still raw copy of parent, so invalidate - * destructor and make plain sk_free() */ - newsk->sk_destruct = NULL; - sk_free(newsk); - return NULL; - } - /* * Step 3: Process LISTEN state * @@ -184,6 +155,17 @@ out_free: dccp_set_seqno(&newdp->dccps_awl, max48(newdp->dccps_awl, newdp->dccps_iss)); + /* + * Activate features after initialising the sequence numbers, + * since CCID initialisation may depend on GSS, ISR, ISS etc. + */ + if (dccp_feat_activate_values(newsk, &dreq->dreq_featneg)) { + /* It is still raw copy of parent, so invalidate + * destructor and make plain sk_free() */ + newsk->sk_destruct = NULL; + sk_free(newsk); + return NULL; + } dccp_init_xmit_timers(newsk); DCCP_INC_STATS_BH(DCCP_MIB_PASSIVEOPENS); |