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* [newlib-cygwin] unix(4): Enhance LOCAL_CREDS_PERSISTENT ABI
@ 2022-07-11 11:53 Sebastian Huber
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From: Sebastian Huber @ 2022-07-11 11:53 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=3f7425e8bb5abcb5c10ecc72acee0007f55a7957
commit 3f7425e8bb5abcb5c10ecc72acee0007f55a7957
Author: Conrad Meyer <cem@FreeBSD.org>
Date: Tue Nov 17 20:01:21 2020 +0000
unix(4): Enhance LOCAL_CREDS_PERSISTENT ABI
As this ABI is still fresh (r367287), let's correct some mistakes now:
- Version the structure to allow for future changes
- Include sender's pid in control message structure
- Use a distinct control message type from the cmsgcred / sockcred mess
Discussed with: kib, markj, trasz
Differential Revision: https://reviews.freebsd.org/D27084
Diff:
---
newlib/libc/sys/rtems/include/sys/socket.h | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/newlib/libc/sys/rtems/include/sys/socket.h b/newlib/libc/sys/rtems/include/sys/socket.h
index 0be6879de..4079b3e91 100644
--- a/newlib/libc/sys/rtems/include/sys/socket.h
+++ b/newlib/libc/sys/rtems/include/sys/socket.h
@@ -495,7 +495,7 @@ struct cmsgcred {
};
/*
- * Socket credentials.
+ * Socket credentials (LOCAL_CREDS).
*/
struct sockcred {
uid_t sc_uid; /* real user id */
@@ -512,6 +512,22 @@ struct sockcred {
#define SOCKCREDSIZE(ngrps) \
(sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
+/*
+ * Socket credentials (LOCAL_CREDS_PERSISTENT).
+ */
+struct sockcred2 {
+ int sc_version; /* version of this structure */
+ pid_t sc_pid; /* PID of sending process */
+ uid_t sc_uid; /* real user id */
+ uid_t sc_euid; /* effective user id */
+ gid_t sc_gid; /* real group id */
+ gid_t sc_egid; /* effective group id */
+ int sc_ngroups; /* number of supplemental groups */
+ gid_t sc_groups[1]; /* variable length */
+};
+#define SOCKCRED2SIZE(ngrps) \
+ (sizeof(struct sockcred2) + (sizeof(gid_t) * ((ngrps) - 1)))
+
#endif /* __BSD_VISIBLE */
/* given pointer to struct cmsghdr, return pointer to data */
@@ -552,6 +568,7 @@ struct sockcred {
#define SCM_REALTIME 0x05 /* timestamp (struct timespec) */
#define SCM_MONOTONIC 0x06 /* timestamp (struct timespec) */
#define SCM_TIME_INFO 0x07 /* timestamp info */
+#define SCM_CREDS2 0x08 /* process creds (struct sockcred2) */
struct sock_timestamp_info {
__uint32_t st_info_flags;
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