api: Add FreeBSD specific mechanisms for unix sockets
FreeBSD doesn't support SCM_CREDENTIALS, but has an equivalent mechanism
called SCM_CRED. This is documented in unix(4), use SCM_CREDS on
FreeBSD.
Type: improvement
Change-Id: Iaf4ec0d68445239c06fa0eef6c25db7e3328e989
Signed-off-by: Tom Jones <thj@freebsd.org>
diff --git a/src/vlibmemory/socket_client.c b/src/vlibmemory/socket_client.c
index 5fa19c6..ad28136 100644
--- a/src/vlibmemory/socket_client.c
+++ b/src/vlibmemory/socket_client.c
@@ -22,6 +22,14 @@
#define _GNU_SOURCE
#include <sys/socket.h>
+#ifdef __FreeBSD__
+#define _WANT_UCRED
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/ucred.h>
+#include <sys/un.h>
+#endif /* __FreeBSD__ */
+
#include <svm/ssvm.h>
#include <vlibmemory/socket_client.h>
#include <vlibmemory/memory_client.h>
@@ -278,7 +286,11 @@
struct msghdr mh = { 0 };
struct iovec iov[1];
ssize_t size = 0;
+#ifdef __linux__
struct ucred *cr = 0;
+#elif __FreeBSD__
+ struct cmsgcred *cr = 0;
+#endif /* __linux__ */
struct cmsghdr *cmsg;
pid_t pid __attribute__ ((unused));
uid_t uid __attribute__ ((unused));
@@ -318,6 +330,7 @@
{
if (cmsg->cmsg_level == SOL_SOCKET)
{
+#ifdef __linux__
if (cmsg->cmsg_type == SCM_CREDENTIALS)
{
cr = (struct ucred *) CMSG_DATA (cmsg);
@@ -325,6 +338,15 @@
gid = cr->gid;
pid = cr->pid;
}
+#elif __FreeBSD__
+ if (cmsg->cmsg_type == SCM_CREDS)
+ {
+ cr = (struct cmsgcred *) CMSG_DATA (cmsg);
+ uid = cr->cmcred_uid;
+ gid = cr->cmcred_gid;
+ pid = cr->cmcred_pid;
+ }
+#endif /* __linux__ */
else if (cmsg->cmsg_type == SCM_RIGHTS)
{
clib_memcpy_fast (fds, CMSG_DATA (cmsg), sizeof (int) * n_fds);