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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-12-01 23:33:18 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-01 23:33:18 -0800
commitb1ad00422ecba0449f8e3a8f2ec9267bc994bf8f (patch)
tree6a3923ca76d60dd0e39b7323c8abaa74bbc7db20 /net/dccp/options.c
parente77b8363b2ea7c0d89919547c1a8b0562f298b57 (diff)
downloadlinux-b1ad00422ecba0449f8e3a8f2ec9267bc994bf8f.tar.bz2
dccp: Processing Confirm options
Analogous to the previous patch, this adds code to interpret incoming Confirm feature-negotiation options. Both functions operate on the feature-negotiation list of either the request_sock (server) or the dccp_sock (client). Thanks to Wei Yongjun for pointing out that it is overly restrictive to check the entire list of confirmed SP values. 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/dccp/options.c')
-rw-r--r--net/dccp/options.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 2c444c199725..debb1008c7ad 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -134,26 +134,14 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
dccp_pr_debug("%s opt: NDP count=%llu\n", dccp_role(sk),
(unsigned long long)opt_recv->dccpor_ndp);
break;
- case DCCPO_CHANGE_L:
- case DCCPO_CHANGE_R:
- if (pkt_type == DCCP_PKT_DATA)
+ case DCCPO_CHANGE_L ... DCCPO_CONFIRM_R:
+ if (pkt_type == DCCP_PKT_DATA) /* RFC 4340, 6 */
break;
rc = dccp_feat_parse_options(sk, dreq, mandatory, opt,
*value, value + 1, len - 1);
if (rc)
goto out_featneg_failed;
break;
- case DCCPO_CONFIRM_L:
- /* fall through */
- case DCCPO_CONFIRM_R:
- if (pkt_type == DCCP_PKT_DATA)
- break;
- if (len < 2) /* FIXME this disallows empty confirm */
- goto out_invalid_option;
- if (dccp_feat_confirm_recv(sk, opt, *value,
- value + 1, len - 1))
- goto out_invalid_option;
- break;
case DCCPO_ACK_VECTOR_0:
case DCCPO_ACK_VECTOR_1:
if (dccp_packet_without_ack(skb)) /* RFC 4340, 11.4 */