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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-13 01:32:17 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-13 14:23:33 -0300 |
commit | 0a2bb03fe20f81dc4cac96d7fe0e4194ae6efffd (patch) | |
tree | f643c68f37c9aa9e2e0b1623b363777c125350df /ipc/kdbus/endpoint.c | |
parent | c49e505b3486503302e30c4237821bece90b4c2d (diff) |
Linux-libre 4.1.5-gnupck-4.1.5-gnu
Diffstat (limited to 'ipc/kdbus/endpoint.c')
-rw-r--r-- | ipc/kdbus/endpoint.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/ipc/kdbus/endpoint.c b/ipc/kdbus/endpoint.c index 977964dbb..44e7a20de 100644 --- a/ipc/kdbus/endpoint.c +++ b/ipc/kdbus/endpoint.c @@ -184,6 +184,34 @@ struct kdbus_ep *kdbus_ep_unref(struct kdbus_ep *ep) } /** + * kdbus_ep_is_privileged() - check whether a file is privileged + * @ep: endpoint to operate on + * @file: file to test + * + * Return: True if @file is privileged in the domain of @ep. + */ +bool kdbus_ep_is_privileged(struct kdbus_ep *ep, struct file *file) +{ + return !ep->user && + file_ns_capable(file, ep->bus->domain->user_namespace, + CAP_IPC_OWNER); +} + +/** + * kdbus_ep_is_owner() - check whether a file should be treated as bus owner + * @ep: endpoint to operate on + * @file: file to test + * + * Return: True if @file should be treated as bus owner on @ep + */ +bool kdbus_ep_is_owner(struct kdbus_ep *ep, struct file *file) +{ + return !ep->user && + (uid_eq(file->f_cred->euid, ep->bus->node.uid) || + kdbus_ep_is_privileged(ep, file)); +} + +/** * kdbus_cmd_ep_make() - handle KDBUS_CMD_ENDPOINT_MAKE * @bus: bus to operate on * @argp: command payload |