gssd: handle new client upcall

Add support for handling the new client-side upcall.  The kernel,
beginning with 2.6.29, will attempt to use a new pipe, "gssd",
which can be used for upcalls for all gss mechanisms.

The new upcall is text-based with an <attribute>=<value> format.
Attribute/value pairs are separated by a space, and terminated
with a new-line character.

The intial version has two required attributes,
mech=<gss_mechanism_name> and uid=<user's_UID_number>, and two
optional attributes, target=<gss_target_name> and service=<value>.

Future kernels may add new attribute/value pairs.

Signed-off-by: Olga Kornievskaia <aglo@citi.umich.edu>
Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: Steve Dickson <steved@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/utils/gssd/gssd.h b/utils/gssd/gssd.h
index 3c53a88..465c305 100644
--- a/utils/gssd/gssd.h
+++ b/utils/gssd/gssd.h
@@ -82,6 +82,8 @@ struct clnt_info {
 	int			krb5_poll_index;
 	int			spkm3_fd;
 	int			spkm3_poll_index;
+	int                     gssd_fd;
+	int                     gssd_poll_index;
 	struct sockaddr_storage addr;
 };
 
@@ -97,6 +99,7 @@ void init_client_list(void);
 int update_client_list(void);
 void handle_krb5_upcall(struct clnt_info *clp);
 void handle_spkm3_upcall(struct clnt_info *clp);
+void handle_gssd_upcall(struct clnt_info *clp);
 int gssd_acquire_cred(char *server_name);
 void gssd_run(void);