memfd: always use our internal utility functions where we have them

[elogind.git] / src / libsystemd / sd-bus / bus-message.c

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 3e60842172d2d7356e8eb952011d0d8bbcf9bcf4..0eea32b649e08cd6299f85faee6a7c8e56ff7016 100644 (file)
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -28,6 +28,7 @@
 #include "strv.h"
 #include "time-util.h"
 #include "cgroup-util.h"
+#include "memfd.h"
 
 #include "sd-bus.h"
 #include "bus-message.h"
@@ -126,16 +127,17 @@ static void message_free(sd_bus_message *m) {
 
         message_reset_parts(m);
 
-        if (m->free_kdbus)
-                free(m->kdbus);
-
         if (m->release_kdbus) {
-                uint64_t off;
+                struct kdbus_cmd_free cmd_free;
 
-                off = (uint8_t *)m->kdbus - (uint8_t *)m->bus->kdbus_buffer;
-                ioctl(m->bus->input_fd, KDBUS_CMD_FREE, &off);
+                cmd_free.flags = 0;
+                cmd_free.offset = (uint8_t *)m->kdbus - (uint8_t *)m->bus->kdbus_buffer;
+                (void) ioctl(m->bus->input_fd, KDBUS_CMD_FREE, &cmd_free);
         }
 
+        if (m->free_kdbus)
+                free(m->kdbus);
+
         sd_bus_unref(m->bus);
 
         if (m->free_fds) {
@@ -847,6 +849,13 @@ _public_ int sd_bus_message_get_auto_start(sd_bus_message *m) {
         return !(m->header->flags & BUS_MESSAGE_NO_AUTO_START);
 }
 
+_public_ int sd_bus_message_get_allow_interactive_authorization(sd_bus_message *m) {
+        assert_return(m, -EINVAL);
+
+        return m->header->type == SD_BUS_MESSAGE_METHOD_CALL &&
+                (m->header->flags & BUS_MESSAGE_ALLOW_INTERACTIVE_AUTHORIZATION);
+}
+
 _public_ const char *sd_bus_message_get_path(sd_bus_message *m) {
         assert_return(m, NULL);
 
@@ -997,6 +1006,18 @@ _public_ int sd_bus_message_set_auto_start(sd_bus_message *m, int b) {
         return 0;
 }
 
+_public_ int sd_bus_message_set_allow_interactive_authorization(sd_bus_message *m, int b) {
+        assert_return(m, -EINVAL);
+        assert_return(!m->sealed, -EPERM);
+
+        if (b)
+                m->header->flags |= BUS_MESSAGE_ALLOW_INTERACTIVE_AUTHORIZATION;
+        else
+                m->header->flags &= ~BUS_MESSAGE_ALLOW_INTERACTIVE_AUTHORIZATION;
+
+        return 0;
+}
+
 static struct bus_container *message_get_container(sd_bus_message *m) {
         assert(m);
 
@@ -1076,10 +1097,10 @@ static int part_make_space(
                         uint64_t new_allocated;
 
                         new_allocated = PAGE_ALIGN(sz > 0 ? 2 * sz : 1);
-                        r = ftruncate(part->memfd, new_allocated);
+                        r = memfd_set_size(part->memfd, new_allocated);
                         if (r < 0) {
                                 m->poisoned = true;
-                                return -errno;
+                                return r;
                         }
 
                         part->allocated = new_allocated;
@@ -2799,11 +2820,12 @@ int bus_message_seal(sd_bus_message *m, uint64_t cookie, usec_t timeout) {
 
                                 /* Then, sync up real memfd size */
                                 sz = part->size;
-                                if (ftruncate(part->memfd, sz) < 0)
-                                        return -errno;
+                                r = memfd_set_size(part->memfd, sz);
+                                if (r < 0)
+                                        return r;
 
                                 /* Finally, try to seal */
-                                if (fcntl(part->memfd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_GROW | F_SEAL_WRITE) >= 0)
+                                if (memfd_set_sealed(part->memfd) >= 0)
                                         part->sealed = true;
                         }
         }
@@ -2840,7 +2862,7 @@ int bus_body_part_map(struct bus_body_part *part) {
         psz = PAGE_ALIGN(part->size);
 
         if (part->memfd >= 0)
-                p = mmap(NULL, psz, PROT_READ, MAP_SHARED, part->memfd, 0);
+                p = mmap(NULL, psz, PROT_READ, MAP_PRIVATE, part->memfd, 0);
         else if (part->is_zero)
                 p = mmap(NULL, psz, PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
         else
@@ -5336,7 +5358,7 @@ int bus_header_message_size(struct bus_header *h, size_t *sum) {
 }
 
 _public_ int sd_bus_message_get_errno(sd_bus_message *m) {
-        assert_return(m, -EINVAL);
+        assert_return(m, EINVAL);
 
         if (m->header->type != SD_BUS_MESSAGE_METHOD_ERROR)
                 return 0;