summaryrefslogtreecommitdiff
path: root/udev
diff options
context:
space:
mode:
Diffstat (limited to 'udev')
-rw-r--r--udev/lib/exported_symbols1
-rw-r--r--udev/lib/libudev-device.c4
-rw-r--r--udev/lib/libudev-monitor.c89
-rw-r--r--udev/lib/libudev.h1
4 files changed, 70 insertions, 25 deletions
diff --git a/udev/lib/exported_symbols b/udev/lib/exported_symbols
index 620b8964a2..72a2937229 100644
--- a/udev/lib/exported_symbols
+++ b/udev/lib/exported_symbols
@@ -23,6 +23,7 @@ udev_device_get_devnum
udev_device_get_seqnum
udev_devices_enumerate
udev_monitor_new_from_socket
+udev_monitor_new_from_netlink
udev_monitor_enable_receiving
udev_monitor_ref
udev_monitor_unref
diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index fd7c962d3a..00b9440386 100644
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -194,6 +194,10 @@ void udev_device_unref(struct udev_device *udev_device)
free(udev_device->subsystem);
name_list_cleanup(udev_device->udev, &udev_device->link_list);
name_list_cleanup(udev_device->udev, &udev_device->env_list);
+ free(udev_device->action);
+ free(udev_device->driver);
+ free(udev_device->devpath_old);
+ free(udev_device->physdevpath);
info(udev_device->udev, "udev_device: %p released\n", udev_device);
free(udev_device);
}
diff --git a/udev/lib/libudev-monitor.c b/udev/lib/libudev-monitor.c
index 454a646046..3e1731e382 100644
--- a/udev/lib/libudev-monitor.c
+++ b/udev/lib/libudev-monitor.c
@@ -29,6 +29,7 @@
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
+#include <linux/netlink.h>
#include "libudev.h"
#include "libudev-private.h"
@@ -38,7 +39,8 @@ struct udev_monitor {
struct udev *udev;
int refcount;
int sock;
- struct sockaddr_un saddr;
+ struct sockaddr_nl snl;
+ struct sockaddr_un sun;
socklen_t addrlen;
};
@@ -74,13 +76,13 @@ struct udev_monitor *udev_monitor_new_from_socket(struct udev *udev, const char
udev_monitor->refcount = 1;
udev_monitor->udev = udev;
- udev_monitor->saddr.sun_family = AF_LOCAL;
- strcpy(udev_monitor->saddr.sun_path, socket_path);
- udev_monitor->addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(udev_monitor->saddr.sun_path);
+ udev_monitor->sun.sun_family = AF_LOCAL;
+ strcpy(udev_monitor->sun.sun_path, socket_path);
+ udev_monitor->addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(udev_monitor->sun.sun_path);
/* translate leading '@' to abstract namespace */
- if (udev_monitor->saddr.sun_path[0] == '@')
- udev_monitor->saddr.sun_path[0] = '\0';
+ if (udev_monitor->sun.sun_path[0] == '@')
+ udev_monitor->sun.sun_path[0] = '\0';
udev_monitor->sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
if (udev_monitor->sock == -1) {
@@ -92,20 +94,56 @@ struct udev_monitor *udev_monitor_new_from_socket(struct udev *udev, const char
return udev_monitor;
}
+struct udev_monitor *udev_monitor_new_from_netlink(struct udev *udev)
+{
+ struct udev_monitor *udev_monitor;
+
+ if (udev == NULL)
+ return NULL;
+ udev_monitor = malloc(sizeof(struct udev_monitor));
+ if (udev_monitor == NULL)
+ return NULL;
+ memset(udev_monitor, 0x00, sizeof(struct udev_monitor));
+ udev_monitor->refcount = 1;
+ udev_monitor->udev = udev;
+
+ udev_monitor->sock = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
+ if (udev_monitor->sock == -1) {
+ err(udev, "error getting socket: %s\n", strerror(errno));
+ free(udev_monitor);
+ return NULL;
+ }
+
+ udev_monitor->snl.nl_family = AF_NETLINK;
+ udev_monitor->snl.nl_pid = getpid();
+ udev_monitor->snl.nl_groups = 1;
+
+ info(udev, "monitor %p created with NETLINK_KOBJECT_UEVENT\n", udev_monitor);
+ return udev_monitor;
+}
+
int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor)
{
int err;
const int on = 1;
- err = bind(udev_monitor->sock, (struct sockaddr *)&udev_monitor->saddr, udev_monitor->addrlen);
- if (err < 0) {
- err(udev_monitor->udev, "bind failed: %s\n", strerror(errno));
- return err;
+ if (udev_monitor->snl.nl_family != 0) {
+ err = bind(udev_monitor->sock, (struct sockaddr *)&udev_monitor->snl, sizeof(struct sockaddr_nl));
+ if (err < 0) {
+ err(udev_monitor->udev, "bind failed: %s\n", strerror(errno));
+ return err;
+ }
+ info(udev_monitor->udev, "monitor %p listening on netlink\n", udev_monitor);
+ } else if (udev_monitor->sun.sun_family != 0) {
+ err = bind(udev_monitor->sock, (struct sockaddr *)&udev_monitor->sun, udev_monitor->addrlen);
+ if (err < 0) {
+ err(udev_monitor->udev, "bind failed: %s\n", strerror(errno));
+ return err;
+ }
+ /* enable receiving of the sender credentials */
+ setsockopt(udev_monitor->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+ info(udev_monitor->udev, "monitor %p listening on socket\n", udev_monitor);
}
-
- /* enable receiving of the sender credentials */
- setsockopt(udev_monitor->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
- info(udev_monitor->udev, "monitor %p listening\n", udev_monitor);
return 0;
}
@@ -197,9 +235,7 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito
{
struct udev_device *udev_device;
struct msghdr smsg;
- struct cmsghdr *cmsg;
struct iovec iov;
- struct ucred *cred;
char cred_msg[CMSG_SPACE(sizeof(struct ucred))];
char buf[4096];
size_t bufpos;
@@ -222,17 +258,20 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito
info(udev_monitor->udev, "unable to receive message");
return NULL;
}
- cmsg = CMSG_FIRSTHDR(&smsg);
- cred = (struct ucred *)CMSG_DATA (cmsg);
- if (cmsg == NULL || cmsg->cmsg_type != SCM_CREDENTIALS) {
- info(udev_monitor->udev, "no sender credentials received, message ignored");
- return NULL;
- }
+ if (udev_monitor->sun.sun_family != 0) {
+ struct cmsghdr *cmsg = CMSG_FIRSTHDR(&smsg);
+ struct ucred *cred = (struct ucred *)CMSG_DATA (cmsg);
- if (cred->uid != 0) {
- info(udev_monitor->udev, "sender uid=%d, message ignored", cred->uid);
- return NULL;
+ if (cmsg == NULL || cmsg->cmsg_type != SCM_CREDENTIALS) {
+ info(udev_monitor->udev, "no sender credentials received, message ignored");
+ return NULL;
+ }
+
+ if (cred->uid != 0) {
+ info(udev_monitor->udev, "sender uid=%d, message ignored", cred->uid);
+ return NULL;
+ }
}
/* skip header */
diff --git a/udev/lib/libudev.h b/udev/lib/libudev.h
index 58c4ea97bb..2267c9ea97 100644
--- a/udev/lib/libudev.h
+++ b/udev/lib/libudev.h
@@ -70,6 +70,7 @@ extern int udev_devices_enumerate(struct udev *udev, const char *subsystem,
struct udev_monitor;
extern struct udev_monitor *udev_monitor_new_from_socket(struct udev *udev, const char *socket_path);
+extern struct udev_monitor *udev_monitor_new_from_netlink(struct udev *udev);
extern int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor);
extern struct udev_monitor *udev_monitor_ref(struct udev_monitor *udev_monitor);
extern void udev_monitor_unref(struct udev_monitor *udev_monitor);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 21:18:18 +0000