X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fsmack-setup.c;h=59f6832bc21feae660a365f8fd9c0907d56683dd;hp=804678d6a6b08d1035ace38ac7238113e288c881;hb=f131770b1465fbf423881f16ba85523a05f846fe;hpb=a4783bd17ad96f55b0fe83a50959da13555292bf

diff --git a/src/core/smack-setup.c b/src/core/smack-setup.c
index 804678d6a..59f6832bc 100644
--- a/src/core/smack-setup.c
+++ b/src/core/smack-setup.c
@@ -36,10 +36,14 @@
 #include "macro.h"
 #include "smack-setup.h"
 #include "util.h"
+#include "fileio.h"
 #include "log.h"
 #include "label.h"
 
 #define SMACK_CONFIG "/etc/smack/accesses.d/"
+#define CIPSO_CONFIG "/etc/smack/cipso.d/"
+
+#ifdef HAVE_SMACK
 
 static int write_rules(const char* dstpath, const char* srcdir) {
         _cleanup_fclose_ FILE *dst = NULL;
@@ -52,7 +56,7 @@ static int write_rules(const char* dstpath, const char* srcdir) {
         dst = fopen(dstpath, "we");
         if (!dst)  {
                 if (errno != ENOENT)
-                        log_warning("Failed to open %s: %m", dstpath);
+                        log_warning_errno(errno, "Failed to open %s: %m", dstpath);
                 return -errno; /* negative error */
         }
 
@@ -60,7 +64,7 @@ static int write_rules(const char* dstpath, const char* srcdir) {
         dir = opendir(srcdir);
         if (!dir) {
                 if (errno != ENOENT)
-                        log_warning("Failed to opendir %s: %m", srcdir);
+                        log_warning_errno(errno, "Failed to opendir %s: %m", srcdir);
                 return errno; /* positive on purpose */
         }
 
@@ -75,7 +79,7 @@ static int write_rules(const char* dstpath, const char* srcdir) {
                 if (fd < 0) {
                         if (r == 0)
                                 r = -errno;
-                        log_warning("Failed to open %s: %m", entry->d_name);
+                        log_warning_errno(errno, "Failed to open %s: %m", entry->d_name);
                         continue;
                 }
 
@@ -83,14 +87,14 @@ static int write_rules(const char* dstpath, const char* srcdir) {
                 if (!policy) {
                         if (r == 0)
                                 r = -errno;
-                        close_nointr_nofail(fd);
-                        log_error("Failed to open %s: %m", entry->d_name);
+                        safe_close(fd);
+                        log_error_errno(errno, "Failed to open %s: %m", entry->d_name);
                         continue;
                 }
 
                 /* load2 write rules in the kernel require a line buffered stream */
                 FOREACH_LINE(buf, policy,
-                             log_error("Failed to read line from %s: %m",
+                             log_error_errno(errno, "Failed to read line from %s: %m",
                                        entry->d_name)) {
                         if (!fputs(buf, dst)) {
                                 if (r == 0)
@@ -101,7 +105,7 @@ static int write_rules(const char* dstpath, const char* srcdir) {
                         if (fflush(dst)) {
                                 if (r == 0)
                                         r = -errno;
-                                log_error("Failed to flush writes to %s: %m", dstpath);
+                                log_error_errno(errno, "Failed to flush writes to %s: %m", dstpath);
                                 break;
                         }
                 }
@@ -110,10 +114,16 @@ static int write_rules(const char* dstpath, const char* srcdir) {
        return r;
 }
 
+#endif
+
+int mac_smack_setup(bool *loaded_policy) {
+
+#ifdef HAVE_SMACK
 
-int smack_setup(void) {
         int r;
 
+        assert(loaded_policy);
+
         r = write_rules("/sys/fs/smackfs/load2", SMACK_CONFIG);
         switch(r) {
         case -ENOENT:
@@ -124,10 +134,40 @@ int smack_setup(void) {
                 return 0;
         case 0:
                 log_info("Successfully loaded Smack policies.");
+                break;
+        default:
+                log_warning("Failed to load Smack access rules: %s, ignoring.",
+                            strerror(abs(r)));
+                return 0;
+        }
+
+#ifdef SMACK_RUN_LABEL
+        r = write_string_file("/proc/self/attr/current", SMACK_RUN_LABEL);
+        if (r)
+                log_warning("Failed to set SMACK label \"%s\" on self: %s",
+                            SMACK_RUN_LABEL, strerror(-r));
+#endif
+
+        r = write_rules("/sys/fs/smackfs/cipso2", CIPSO_CONFIG);
+        switch(r) {
+        case -ENOENT:
+                log_debug("Smack/CIPSO is not enabled in the kernel.");
+                return 0;
+        case ENOENT:
+                log_debug("Smack/CIPSO access rules directory " CIPSO_CONFIG " not found");
                 return 0;
+        case 0:
+                log_info("Successfully loaded Smack/CIPSO policies.");
+                break;
         default:
-                log_warning("Failed to load smack access rules: %s, ignoring.",
+                log_warning("Failed to load Smack/CIPSO access rules: %s, ignoring.",
                             strerror(abs(r)));
                 return 0;
         }
+
+        *loaded_policy = true;
+
+#endif
+
+        return 0;
 }