- Implement two new system calls:

	int bindat(int fd, int s, const struct sockaddr *addr, socklen_t addrlen);
	int connectat(int fd, int s, const struct sockaddr *name, socklen_t namelen);

  which allow to bind and connect respectively to a UNIX domain socket with a
  path relative to the directory associated with the given file descriptor 'fd'.

- Add manual pages for the new syscalls.

- Make the new syscalls available for processes in capability mode sandbox.

- Add capability rights CAP_BINDAT and CAP_CONNECTAT that has to be present on
  the directory descriptor for the syscalls to work.

- Update audit(4) to support those two new syscalls and to handle path
  in sockaddr_un structure relative to the given directory descriptor.

- Update procstat(1) to recognize the new capability rights.

- Document the new capability rights in cap_rights_limit(2).

Sponsored by:	The FreeBSD Foundation
Discussed with:	rwatson, jilles, kib, des

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/bsm/audit_kevents.h b/sys/bsm/audit_kevents.h
index 9d71fa28335c..d56a96b4e687 100644
--- a/sys/bsm/audit_kevents.h
+++ b/sys/bsm/audit_kevents.h
@@ -608,6 +608,8 @@
 #define	AUE_CAP_IOCTLS_GET	43204	/* TrustedBSD. */
 #define	AUE_CAP_FCNTLS_LIMIT	43205	/* TrustedBSD. */
 #define	AUE_CAP_FCNTLS_GET	43206	/* TrustedBSD. */
+#define	AUE_BINDAT		43207	/* TrustedBSD. */
+#define	AUE_CONNECTAT		43208	/* TrustedBSD. */
 
 /*
  * Darwin BSM uses a number of AUE_O_* definitions, which are aliased to the