- 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/lib/libc/sys/Symbol.map b/lib/libc/sys/Symbol.map
index 7738e46d8c84..fc000641ad0b 100644
--- a/lib/libc/sys/Symbol.map
+++ b/lib/libc/sys/Symbol.map
@@ -378,6 +378,7 @@ FBSD_1.2 {
 };
 
 FBSD_1.3 {
+	bindat;
 	cap_fcntls_get;
 	cap_fcntls_limit;
 	cap_ioctls_get;
@@ -386,6 +387,7 @@ FBSD_1.3 {
 	cap_rights_limit;
 	cap_sandboxed;
 	clock_getcpuclockid2;
+	connectat;
 	ffclock_getcounter;
 	ffclock_getestimate;
 	ffclock_setestimate;