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| author | David S. Miller <davem@davemloft.net> | 2018-03-07 18:55:30 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-07 18:55:30 +0300 |
| commit | 1c02e377e216b02c965be99338332be1b4f704ff (patch) | |
| tree | 68a902b5dcfd1b1e8a9b5ba97581666b8c58652b /include | |
| parent | 5c3d0fd4b2c047cedb1cbdad6e2d6bc9abfec256 (diff) | |
| parent | 4910280503f3af2857d5aa77e35b22d93a8960a8 (diff) | |
| download | linux-1c02e377e216b02c965be99338332be1b4f704ff.tar.xz | |
Merge branch 'sctp-add-support-for-some-msg_control-options-from-RFC6458'
Xin Long says:
====================
sctp: add support for some msg_control options from RFC6458
This patchset is to add support for 3 msg_control options described
in RFC6458:
5.3.7. SCTP PR-SCTP Information Structure (SCTP_PRINFO)
5.3.9. SCTP Destination IPv4 Address Structure (SCTP_DSTADDRV4)
5.3.10. SCTP Destination IPv6 Address Structure (SCTP_DSTADDRV6)
one send flag described in RFC6458:
SCTP_SENDALL: This flag, if set, will cause a one-to-many
style socket to send the message to all associations that
are currently established on this socket. For the one-to-
one style socket, this flag has no effect.
Note there is another msg_control option:
5.3.8. SCTP AUTH Information Structure (SCTP_AUTHINFO)
It's a little complicated, I will post it in another patchset after
this.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/sctp/structs.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/sctp.h | 23 |
2 files changed, 25 insertions, 0 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 03e92dda1813..ec6e46b7e119 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -2112,6 +2112,8 @@ struct sctp_cmsgs { struct sctp_initmsg *init; struct sctp_sndrcvinfo *srinfo; struct sctp_sndinfo *sinfo; + struct sctp_prinfo *prinfo; + struct msghdr *addrs_msg; }; /* Structure for tracking memory objects */ diff --git a/include/uapi/linux/sctp.h b/include/uapi/linux/sctp.h index 4c4db14786bd..e94b6d297ad9 100644 --- a/include/uapi/linux/sctp.h +++ b/include/uapi/linux/sctp.h @@ -260,6 +260,19 @@ struct sctp_nxtinfo { sctp_assoc_t nxt_assoc_id; }; +/* 5.3.7 SCTP PR-SCTP Information Structure (SCTP_PRINFO) + * + * This cmsghdr structure specifies SCTP options for sendmsg(). + * + * cmsg_level cmsg_type cmsg_data[] + * ------------ ------------ ------------------- + * IPPROTO_SCTP SCTP_PRINFO struct sctp_prinfo + */ +struct sctp_prinfo { + __u16 pr_policy; + __u32 pr_value; +}; + /* * sinfo_flags: 16 bits (unsigned integer) * @@ -271,6 +284,8 @@ enum sctp_sinfo_flags { SCTP_ADDR_OVER = (1 << 1), /* Override the primary destination. */ SCTP_ABORT = (1 << 2), /* Send an ABORT message to the peer. */ SCTP_SACK_IMMEDIATELY = (1 << 3), /* SACK should be sent without delay. */ + /* 2 bits here have been used by SCTP_PR_SCTP_MASK */ + SCTP_SENDALL = (1 << 6), SCTP_NOTIFICATION = MSG_NOTIFICATION, /* Next message is not user msg but notification. */ SCTP_EOF = MSG_FIN, /* Initiate graceful shutdown process. */ }; @@ -293,6 +308,14 @@ typedef enum sctp_cmsg_type { #define SCTP_RCVINFO SCTP_RCVINFO SCTP_NXTINFO, /* 5.3.6 SCTP Next Receive Information Structure */ #define SCTP_NXTINFO SCTP_NXTINFO + SCTP_PRINFO, /* 5.3.7 SCTP PR-SCTP Information Structure */ +#define SCTP_PRINFO SCTP_PRINFO + SCTP_AUTHINFO, /* 5.3.8 SCTP AUTH Information Structure (RESERVED) */ +#define SCTP_AUTHINFO SCTP_AUTHINFO + SCTP_DSTADDRV4, /* 5.3.9 SCTP Destination IPv4 Address Structure */ +#define SCTP_DSTADDRV4 SCTP_DSTADDRV4 + SCTP_DSTADDRV6, /* 5.3.10 SCTP Destination IPv6 Address Structure */ +#define SCTP_DSTADDRV6 SCTP_DSTADDRV6 } sctp_cmsg_t; /* |