#include "memfd-util.h"
#include "capability.h"
#include "fileio.h"
+#include "formats-util.h"
#include "bus-internal.h"
#include "bus-message.h"
m->creds.mask |= SD_BUS_CREDS_TID & bus->creds_mask;
}
+ if (d->pids.ppid > 0) {
+ m->creds.ppid = (pid_t) d->pids.ppid;
+ m->creds.mask |= SD_BUS_CREDS_PPID & bus->creds_mask;
+ } else if (d->pids.pid == 1) {
+ m->creds.ppid = 0;
+ m->creds.mask |= SD_BUS_CREDS_PPID & bus->creds_mask;
+ }
+
break;
case KDBUS_ITEM_CREDS:
break;
case KDBUS_ITEM_AUDIT:
- if ((uint32_t) d->audit.sessionid != (uint32_t) -1) {
- m->creds.audit_session_id = (uint32_t) d->audit.sessionid;
- m->creds.mask |= SD_BUS_CREDS_AUDIT_SESSION_ID & bus->creds_mask;
- }
+ m->creds.audit_session_id = (uint32_t) d->audit.sessionid;
+ m->creds.mask |= SD_BUS_CREDS_AUDIT_SESSION_ID & bus->creds_mask;
- if ((uid_t) d->audit.loginuid != UID_INVALID) {
- m->creds.audit_login_uid = (uid_t) d->audit.loginuid;
- m->creds.mask |= SD_BUS_CREDS_AUDIT_LOGIN_UID & bus->creds_mask;
- }
+ m->creds.audit_login_uid = (uid_t) d->audit.loginuid;
+ m->creds.mask |= SD_BUS_CREDS_AUDIT_LOGIN_UID & bus->creds_mask;
break;
case KDBUS_ITEM_CAPS:
}
r = ioctl(b->input_fd, KDBUS_CMD_HELLO, hello);
- if (r < 0)
+ if (r < 0) {
+ if (errno == ENOTTY)
+ /* If the ioctl is not supported we assume that the
+ * API version changed in a major incompatible way,
+ * let's indicate an API incompatibility in this
+ * case. */
+ return -ESOCKTNOSUPPORT;
+
return -errno;
+ }
if (!b->kdbus_buffer) {
b->kdbus_buffer = mmap(NULL, KDBUS_POOL_SIZE, PROT_READ, MAP_SHARED, b->input_fd, 0);
/* The higher 32bit of the bus_flags fields are considered
* 'incompatible flags'. Refuse them all for now. */
if (hello->bus_flags > 0xFFFFFFFFULL) {
- r = -EOPNOTSUPP;
+ r = -ESOCKTNOSUPPORT;
goto fail;
}
SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID))
m |= KDBUS_ATTACH_CREDS;
- if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID))
+ if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID|SD_BUS_CREDS_PPID))
m |= KDBUS_ATTACH_PIDS;
if (mask & SD_BUS_CREDS_COMM)
make = alloca0_align(offsetof(struct kdbus_cmd, items) +
ALIGN8(offsetof(struct kdbus_item, bloom_parameter) + sizeof(struct kdbus_bloom_parameter)) +
ALIGN8(offsetof(struct kdbus_item, data64) + sizeof(uint64_t)) +
- ALIGN8(offsetof(struct kdbus_item, data64) + sizeof(uint64_t)) +
ALIGN8(offsetof(struct kdbus_item, str) + DECIMAL_STR_MAX(uid_t) + 1 + l + 1),
8);
make->size += ALIGN8(n->size);
- /* The busses we create make no restrictions on what metadata
- * peers can read from incoming messages. */
- n = KDBUS_ITEM_NEXT(n);
- n->type = KDBUS_ITEM_ATTACH_FLAGS_RECV;
- n->size = offsetof(struct kdbus_item, data64) + sizeof(uint64_t);
- n->data64[0] = _KDBUS_ATTACH_ANY;
- make->size += ALIGN8(n->size);
-
/* Provide all metadata via bus-owner queries */
n = KDBUS_ITEM_NEXT(n);
n->type = KDBUS_ITEM_ATTACH_FLAGS_SEND;
if (ioctl(fd, KDBUS_CMD_BUS_MAKE, make) < 0) {
safe_close(fd);
+
+ /* Major API change? then the ioctls got shuffled around. */
+ if (errno == ENOTTY)
+ return -ESOCKTNOSUPPORT;
+
return -errno;
}
return 0;
}
-int bus_kernel_fix_attach_mask(void) {
- _cleanup_free_ char *mask = NULL;
- uint64_t m = (uint64_t) -1;
- char buf[2+16+2];
- int r;
-
- /* By default we don't want any kdbus metadata fields to be
- * suppressed, hence we reset the kernel mask for it to
- * (uint64_t) -1. If the module argument was overwritten by
- * the kernel cmdline, we leave it as is. */
-
- r = get_proc_cmdline_key("kdbus.attach_flags_mask=", &mask);
- if (r < 0)
- return log_warning_errno(r, "Failed to read kernel command line: %m");
-
- if (r == 0) {
- sprintf(buf, "0x%" PRIx64 "\n", m);
- r = write_string_file("/sys/module/kdbus/parameters/attach_flags_mask", buf);
- if (r < 0)
- return log_full_errno(IN_SET(r, -ENOENT, -EROFS) ? LOG_DEBUG : LOG_WARNING, r,
- "Failed to write kdbus attach mask: %m");
- }
-
- return 0;
-}
-
int bus_kernel_get_bus_name(sd_bus *bus, char **name) {
struct kdbus_cmd_info cmd = {
.size = sizeof(struct kdbus_cmd_info),