From 50f3a1a23e55111fc871c1f4bcd846da9334577a Mon Sep 17 00:00:00 2001
From: Johann Latocha
Date: Wed, 18 Jul 2012 16:50:25 +0200
Subject: [SERVER] Set groupid and permissions on ipc socket

---
 src/config.h     |  7 ++++---
 src/server/ipc.c | 16 +++++++++++++++-
 2 files changed, 19 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/config.h b/src/config.h
index b74ceab..bf5e668 100644
--- a/src/config.h
+++ b/src/config.h
@@ -40,8 +40,9 @@
 #define DEFAULT_READ_AHEAD_KB 256
 
 // misc
-#define DEFAULT_SERVER_CONFIG_FILE "/etc/dnbd3-server.conf"
-#define DEFAULT_CLIENT_CONFIG_FILE "/etc/dnbd3-client.conf"
-#define UNIX_SOCKET "/tmp/dnbd3-server.sock"
+#define DEFAULT_SERVER_CONFIG_FILE "/etc/dnbd3/server.conf"
+#define DEFAULT_CLIENT_CONFIG_FILE "/etc/dnbd3/client.conf"
+#define UNIX_SOCKET "/run/dnbd3-server.sock"
+#define UNIX_SOCKET_GROUP "dnbd"
 
 #endif /* CONFIG_H_ */
diff --git a/src/server/ipc.c b/src/server/ipc.c
index 522c4ca..674d20d 100644
--- a/src/server/ipc.c
+++ b/src/server/ipc.c
@@ -22,7 +22,8 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <stdio.h>
-
+#include <sys/stat.h>
+#include <grp.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <pthread.h>
@@ -68,6 +69,19 @@ void* dnbd3_ipc_receive()
         exit(EXIT_FAILURE);
     }
 
+    // Set groupID and permissions on ipc socket
+    struct group *grp;
+    grp = getgrnam(UNIX_SOCKET_GROUP);
+    if (grp == NULL)
+    {
+    	printf("WARN: Group '%s' not found.\n", UNIX_SOCKET_GROUP);
+    }
+    else
+    {
+    	chmod(UNIX_SOCKET, 0775);
+    	chown(UNIX_SOCKET, -1, grp->gr_gid);
+    }
+
     while (1)
     {
         int cmd, num, i = 0;
-- 
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