X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fcore%2Fcondition.c;h=d8d11528eca33a90c59c9527c76cdf1a41960714;hb=d1bddcec98551ea748f39a742a4cbcf9ea9254ef;hp=658e8d6a4c000e47d9f6b769d9d3ec559ec6c44f;hpb=b77c08e06b67d5b1dd8aaf67b732e93851d8ae43;p=elogind.git

diff --git a/src/core/condition.c b/src/core/condition.c
index 658e8d6a4..d8d11528e 100644
--- a/src/core/condition.c
+++ b/src/core/condition.c
@@ -19,161 +19,8 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/capability.h>
-#include <sys/statvfs.h>
-#include <fnmatch.h>
-
-#include <systemd/sd-id128.h>
-#include "util.h"
 #include "condition.h"
-#include "virt.h"
-#include "path-util.h"
-#include "fileio.h"
 #include "unit.h"
-#include "smack-util.h"
-#include "apparmor-util.h"
-#include "ima-util.h"
-#include "selinux-util.h"
-
-static bool condition_test_security(Condition *c) {
-        assert(c);
-        assert(c->parameter);
-        assert(c->type == CONDITION_SECURITY);
-
-        if (streq(c->parameter, "selinux"))
-                return use_selinux() == !c->negate;
-        if (streq(c->parameter, "apparmor"))
-                return use_apparmor() == !c->negate;
-        if (streq(c->parameter, "ima"))
-                return use_ima() == !c->negate;
-        if (streq(c->parameter, "smack"))
-                return use_smack() == !c->negate;
-        return c->negate;
-}
-
-static bool condition_test_capability(Condition *c) {
-        cap_value_t value;
-        FILE *f;
-        char line[LINE_MAX];
-        unsigned long long capabilities = (unsigned long long) -1;
-
-        assert(c);
-        assert(c->parameter);
-        assert(c->type == CONDITION_CAPABILITY);
-
-        /* If it's an invalid capability, we don't have it */
-
-        if (cap_from_name(c->parameter, &value) < 0)
-                return c->negate;
-
-        /* If it's a valid capability we default to assume
-         * that we have it */
-
-        f = fopen("/proc/self/status", "re");
-        if (!f)
-                return !c->negate;
-
-        while (fgets(line, sizeof(line), f)) {
-                truncate_nl(line);
-
-                if (startswith(line, "CapBnd:")) {
-                        (void) sscanf(line+7, "%llx", &capabilities);
-                        break;
-                }
-        }
-
-        fclose(f);
-
-        return !!(capabilities & (1ULL << value)) == !c->negate;
-}
-
-static bool condition_test(Condition *c) {
-        assert(c);
-
-        switch(c->type) {
-
-        case CONDITION_PATH_EXISTS:
-                return (access(c->parameter, F_OK) >= 0) == !c->negate;
-
-        case CONDITION_PATH_EXISTS_GLOB:
-                return (glob_exists(c->parameter) > 0) == !c->negate;
-
-        case CONDITION_PATH_IS_DIRECTORY: {
-                struct stat st;
-
-                if (stat(c->parameter, &st) < 0)
-                        return c->negate;
-                return S_ISDIR(st.st_mode) == !c->negate;
-        }
-
-        case CONDITION_PATH_IS_SYMBOLIC_LINK: {
-                struct stat st;
-
-                if (lstat(c->parameter, &st) < 0)
-                        return c->negate;
-                return S_ISLNK(st.st_mode) == !c->negate;
-        }
-
-        case CONDITION_PATH_IS_MOUNT_POINT:
-                return (path_is_mount_point(c->parameter, true) > 0) == !c->negate;
-
-        case CONDITION_PATH_IS_READ_WRITE:
-                return (path_is_read_only_fs(c->parameter) > 0) == c->negate;
-
-        case CONDITION_DIRECTORY_NOT_EMPTY: {
-                int k;
-
-                k = dir_is_empty(c->parameter);
-                return !(k == -ENOENT || k > 0) == !c->negate;
-        }
-
-        case CONDITION_FILE_NOT_EMPTY: {
-                struct stat st;
-
-                if (stat(c->parameter, &st) < 0)
-                        return c->negate;
-
-                return (S_ISREG(st.st_mode) && st.st_size > 0) == !c->negate;
-        }
-
-        case CONDITION_FILE_IS_EXECUTABLE: {
-                struct stat st;
-
-                if (stat(c->parameter, &st) < 0)
-                        return c->negate;
-
-                return (S_ISREG(st.st_mode) && (st.st_mode & 0111)) == !c->negate;
-        }
-
-        case CONDITION_KERNEL_COMMAND_LINE:
-                return condition_test_kernel_command_line(c);
-
-        case CONDITION_VIRTUALIZATION:
-                return condition_test_virtualization(c);
-
-        case CONDITION_SECURITY:
-                return condition_test_security(c);
-
-        case CONDITION_CAPABILITY:
-                return condition_test_capability(c);
-
-        case CONDITION_HOST:
-                return condition_test_host(c);
-
-        case CONDITION_AC_POWER:
-                return condition_test_ac_power(c);
-
-        case CONDITION_NULL:
-                return !c->negate;
-
-        default:
-                assert_not_reached("Invalid condition type.");
-        }
-}
 
 bool condition_test_list(const char *unit, Condition *first) {
         Condition *c;
@@ -187,25 +34,35 @@ bool condition_test_list(const char *unit, Condition *first) {
          * if any of the trigger conditions apply (unless there are
          * none) we return true */
         LIST_FOREACH(conditions, c, first) {
-                bool b;
-
-                b = condition_test(c);
-                if (unit)
+                int r;
+
+                r = condition_test(c);
+                if (r < 0)
+                        log_warning_unit(unit,
+                                         "Couldn't determine result for %s=%s%s%s for %s, assuming failed: %s",
+                                         condition_type_to_string(c->type),
+                                         c->trigger ? "|" : "",
+                                         c->negate ? "!" : "",
+                                         c->parameter,
+                                         unit,
+                                         strerror(-r));
+                else
                         log_debug_unit(unit,
                                        "%s=%s%s%s %s for %s.",
                                        condition_type_to_string(c->type),
                                        c->trigger ? "|" : "",
                                        c->negate ? "!" : "",
                                        c->parameter,
-                                       b ? "succeeded" : "failed",
+                                       r > 0 ? "succeeded" : "failed",
                                        unit);
-                c->state = b ? 1 : -1;
 
-                if (!c->trigger && !b)
+                c->state = r > 0 ? CONDITION_STATE_SUCCEEDED : CONDITION_STATE_FAILED;
+
+                if (!c->trigger && r <= 0)
                         return false;
 
                 if (c->trigger && triggered <= 0)
-                        triggered = b;
+                        triggered = r > 0;
         }
 
         return triggered != 0;