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udev/udev-ctrl.c:udev_ctrl_new_from_fd() enable SO_PASSCRED

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Avoid "sender uid=65534, message ignored" case, where no credentials can
be read on the sender side.

Seems, the server socket does not enable credential receiving fast
enough, and the message from the client (without credential) sometimes
is queued before the credential passing was active.

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
This commit is contained in:
Harald Hoyer 2013-06-02 12:57:36 -04:00 committed by Anthony G. Basile
parent 786cd8191b
commit ca5fc30e5a
1 changed files with 2 additions and 0 deletions
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2
src/udev/udev-ctrl.c
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@ -73,6 +73,7 @@ struct udev_ctrl_connection {
struct udev_ctrl *udev_ctrl_new_from_fd(struct udev *udev, int fd)
{
struct udev_ctrl *uctrl;
const int on = 1;
uctrl = calloc(1, sizeof(struct udev_ctrl));
if (uctrl == NULL)
@ -91,6 +92,7 @@ struct udev_ctrl *udev_ctrl_new_from_fd(struct udev *udev, int fd)
uctrl->bound = true;
uctrl->sock = fd;
}
setsockopt(uctrl->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
uctrl->saddr.sun_family = AF_LOCAL;
util_strscpy(uctrl->saddr.sun_path, sizeof(uctrl->saddr.sun_path), "/run/udev/control");