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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-11-23 16:04:59 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-23 16:04:59 -0800
commit71c262a3dd42dea73700646d969b0af7a4102edf (patch)
tree7586f62639805bc6b6854b71294e53be66490f2c /net/dccp/ccid.h
parentdccp: Set per-connection CCIDs via socket options (diff)
downloadlinux-dev-71c262a3dd42dea73700646d969b0af7a4102edf.tar.xz
linux-dev-71c262a3dd42dea73700646d969b0af7a4102edf.zip
dccp: API to query the current TX/RX CCID
This provides function to query the current TX/RX CCID dynamically, without reliance on the minisock value, using dynamic information available in the currently loaded CCID module. This query function is then used to (a) provide the getsockopt part for getting/setting CCIDs via sockopts; (b) replace the current test for "which CCID is in use" in probe.c. 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/ccid.h')
-rw-r--r--net/dccp/ccid.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index 259f5469d7d0..803343aed004 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -116,6 +116,24 @@ extern struct ccid *ccid_hc_rx_new(unsigned char id, struct sock *sk,
extern struct ccid *ccid_hc_tx_new(unsigned char id, struct sock *sk,
gfp_t gfp);
+static inline int ccid_get_current_rx_ccid(struct dccp_sock *dp)
+{
+ struct ccid *ccid = dp->dccps_hc_rx_ccid;
+
+ if (ccid == NULL || ccid->ccid_ops == NULL)
+ return -1;
+ return ccid->ccid_ops->ccid_id;
+}
+
+static inline int ccid_get_current_tx_ccid(struct dccp_sock *dp)
+{
+ struct ccid *ccid = dp->dccps_hc_tx_ccid;
+
+ if (ccid == NULL || ccid->ccid_ops == NULL)
+ return -1;
+ return ccid->ccid_ops->ccid_id;
+}
+
extern void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
extern void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);