struct sctp_initmsg *init;
struct sctp_sndrcvinfo *srinfo;
struct sctp_sndinfo *sinfo;
+ struct sctp_prinfo *prinfo;
};
/* Structure for tracking memory objects */
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)
*
#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_cmsg_t;
/*
srinfo->sinfo_assoc_id = cmsgs->sinfo->snd_assoc_id;
}
+ if (cmsgs->prinfo) {
+ srinfo->sinfo_timetolive = cmsgs->prinfo->pr_value;
+ SCTP_PR_SET_POLICY(srinfo->sinfo_flags,
+ cmsgs->prinfo->pr_policy);
+ }
+
sflags = srinfo->sinfo_flags;
if (!sflags && msg_len)
return 0;
sinfo->sinfo_ppid = asoc->default_ppid;
sinfo->sinfo_context = asoc->default_context;
sinfo->sinfo_assoc_id = sctp_assoc2id(asoc);
+
+ if (!cmsgs->prinfo)
+ sinfo->sinfo_flags = asoc->default_flags;
}
- if (!cmsgs->srinfo)
+ if (!cmsgs->srinfo && !cmsgs->prinfo)
sinfo->sinfo_timetolive = asoc->default_timetolive;
}
SCTP_ABORT | SCTP_EOF))
return -EINVAL;
break;
+ case SCTP_PRINFO:
+ /* SCTP Socket API Extension
+ * 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
+ */
+ if (cmsg->cmsg_len != CMSG_LEN(sizeof(struct sctp_prinfo)))
+ return -EINVAL;
+
+ cmsgs->prinfo = CMSG_DATA(cmsg);
+ if (cmsgs->prinfo->pr_policy & ~SCTP_PR_SCTP_MASK)
+ return -EINVAL;
+
+ if (cmsgs->prinfo->pr_policy == SCTP_PR_SCTP_NONE)
+ cmsgs->prinfo->pr_value = 0;
+ break;
default:
return -EINVAL;
}