diff options
| -rw-r--r-- | man/sd_session_is_active.xml | 22 | ||||
| -rw-r--r-- | src/login/libsystemd-login.sym | 1 | ||||
| -rw-r--r-- | src/login/sd-login.c | 28 | ||||
| -rw-r--r-- | src/systemd/sd-login.h | 3 |
4 files changed, 52 insertions, 2 deletions
diff --git a/man/sd_session_is_active.xml b/man/sd_session_is_active.xml index 88b22fd9f8..516275ea9f 100644 --- a/man/sd_session_is_active.xml +++ b/man/sd_session_is_active.xml @@ -46,6 +46,7 @@ <refname>sd_session_is_active</refname> <refname>sd_session_get_uid</refname> <refname>sd_session_get_seat</refname> + <refname>sd_session_get_service</refname> <refpurpose>Determine state of a specific session</refpurpose> </refnamediv> @@ -69,6 +70,12 @@ <paramdef>const char* <parameter>session</parameter></paramdef> <paramdef>char** <parameter>seat</parameter></paramdef> </funcprototype> + + <funcprototype> + <funcdef>int <function>sd_session_get_service</function></funcdef> + <paramdef>const char* <parameter>session</parameter></paramdef> + <paramdef>char** <parameter>service</parameter></paramdef> + </funcprototype> </funcsynopsis> </refsynopsisdiv> @@ -94,6 +101,15 @@ returned string needs to be freed with the libc <citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry> call after use.</para> + + <para><function>sd_session_get_service()</function> + may be used to determine the name of the service (as + passed during PAM session setup) that registered the + session identified by the specified session + identifier. The returned string needs to be freed with + the libc + <citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry> + call after use.</para> </refsect1> <refsect1> @@ -102,7 +118,8 @@ <para>If the test succeeds <function>sd_session_is_active()</function> returns a positive integer, if it fails 0. On success - <function>sd_session_get_uid()</function> and + <function>sd_session_get_uid()</function>, + <function>sd_session_get_service()</function> and <function>sd_session_get_seat()</function> return 0 or a positive integer. On failure, these calls return a negative errno-style error code.</para> @@ -112,7 +129,8 @@ <title>Notes</title> <para>The <function>sd_session_is_active()</function>, - <function>sd_session_get_uid()</function>, and + <function>sd_session_get_uid()</function>, + <function>sd_session_get_service()</function> and <function>sd_session_get_seat()</function> interfaces are available as shared library, which can be compiled and linked to with the diff --git a/src/login/libsystemd-login.sym b/src/login/libsystemd-login.sym index 15e505e83b..3100c17662 100644 --- a/src/login/libsystemd-login.sym +++ b/src/login/libsystemd-login.sym @@ -37,4 +37,5 @@ local: LIBSYSTEMD_LOGIN_38 { global: sd_pid_get_unit; + sd_session_get_service; } LIBSYSTEMD_LOGIN_31; diff --git a/src/login/sd-login.c b/src/login/sd-login.c index 8893b1de80..ed98412266 100644 --- a/src/login/sd-login.c +++ b/src/login/sd-login.c @@ -415,6 +415,34 @@ _public_ int sd_session_get_seat(const char *session, char **seat) { return 0; } +_public_ int sd_session_get_service(const char *session, char **service) { + char *p, *s = NULL; + int r; + + if (!session) + return -EINVAL; + if (!service) + return -EINVAL; + + p = strappend("/run/systemd/sessions/", session); + if (!p) + return -ENOMEM; + + r = parse_env_file(p, NEWLINE, "SERVICE", &s, NULL); + free(p); + + if (r < 0) { + free(s); + return r; + } + + if (isempty(s)) + return -ENOENT; + + *service = s; + return 0; +} + _public_ int sd_seat_get_active(const char *seat, char **session, uid_t *uid) { char *p, *s = NULL, *t = NULL; int r; diff --git a/src/systemd/sd-login.h b/src/systemd/sd-login.h index 00de6716b0..7d76f9a44e 100644 --- a/src/systemd/sd-login.h +++ b/src/systemd/sd-login.h @@ -83,6 +83,9 @@ int sd_session_get_uid(const char *session, uid_t *uid); /* Determine seat of session */ int sd_session_get_seat(const char *session, char **seat); +/* Determine the (PAM) service name this session was registered by. */ +int sd_session_get_service(const char *session, char **service); + /* Return active session and user of seat */ int sd_seat_get_active(const char *seat, char **session, uid_t *uid); |