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-rw-r--r--include/uapi/linux/sctp.h32
1 files changed, 25 insertions, 7 deletions
diff --git a/include/uapi/linux/sctp.h b/include/uapi/linux/sctp.h
index a387761f7e0..29b81bbfc53 100644
--- a/include/uapi/linux/sctp.h
+++ b/include/uapi/linux/sctp.h
@@ -95,6 +95,7 @@ typedef __s32 sctp_assoc_t;
#define SCTP_GET_ASSOC_ID_LIST 29 /* Read only */
#define SCTP_AUTO_ASCONF 30
#define SCTP_PEER_ADDR_THLDS 31
+#define SCTP_RECVRCVINFO 32
/* Internal Socket Options. Some of the sctp library functions are
* implemented using these socket options.
@@ -110,8 +111,7 @@ typedef __s32 sctp_assoc_t;
#define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */
#define SCTP_GET_ASSOC_STATS 112 /* Read only */
-/*
- * 5.2.1 SCTP Initiation Structure (SCTP_INIT)
+/* 5.3.1 SCTP Initiation Structure (SCTP_INIT)
*
* This cmsghdr structure provides information for initializing new
* SCTP associations with sendmsg(). The SCTP_INITMSG socket option
@@ -121,7 +121,6 @@ typedef __s32 sctp_assoc_t;
* cmsg_level cmsg_type cmsg_data[]
* ------------ ------------ ----------------------
* IPPROTO_SCTP SCTP_INIT struct sctp_initmsg
- *
*/
struct sctp_initmsg {
__u16 sinit_num_ostreams;
@@ -130,8 +129,7 @@ struct sctp_initmsg {
__u16 sinit_max_init_timeo;
};
-/*
- * 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV)
+/* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV)
*
* This cmsghdr structure specifies SCTP options for sendmsg() and
* describes SCTP header information about a received message through
@@ -140,7 +138,6 @@ struct sctp_initmsg {
* cmsg_level cmsg_type cmsg_data[]
* ------------ ------------ ----------------------
* IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo
- *
*/
struct sctp_sndrcvinfo {
__u16 sinfo_stream;
@@ -170,13 +167,32 @@ struct sctp_sndinfo {
sctp_assoc_t snd_assoc_id;
};
+/* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO)
+ *
+ * This cmsghdr structure describes SCTP receive information
+ * about a received message through recvmsg().
+ *
+ * cmsg_level cmsg_type cmsg_data[]
+ * ------------ ------------ -------------------
+ * IPPROTO_SCTP SCTP_RCVINFO struct sctp_rcvinfo
+ */
+struct sctp_rcvinfo {
+ __u16 rcv_sid;
+ __u16 rcv_ssn;
+ __u16 rcv_flags;
+ __u32 rcv_ppid;
+ __u32 rcv_tsn;
+ __u32 rcv_cumtsn;
+ __u32 rcv_context;
+ sctp_assoc_t rcv_assoc_id;
+};
+
/*
* sinfo_flags: 16 bits (unsigned integer)
*
* This field may contain any of the following flags and is composed of
* a bitwise OR of these values.
*/
-
enum sctp_sinfo_flags {
SCTP_UNORDERED = 1, /* Send/receive message unordered. */
SCTP_ADDR_OVER = 2, /* Override the primary destination. */
@@ -199,6 +215,8 @@ typedef enum sctp_cmsg_type {
#define SCTP_SNDRCV SCTP_SNDRCV
SCTP_SNDINFO, /* 5.3.4 SCTP Send Information Structure */
#define SCTP_SNDINFO SCTP_SNDINFO
+ SCTP_RCVINFO, /* 5.3.5 SCTP Receive Information Structure */
+#define SCTP_RCVINFO SCTP_RCVINFO
} sctp_cmsg_t;
/*