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Commit c4c1bff6 authored by Jeff Layton's avatar Jeff Layton Committed by Steve French
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cifs: add pid of initiating process to spnego upcall info 



cifs: add pid of initiating process to spnego upcall info

This will allow the upcall to poke in /proc/<pid>/environ and get
the value of the $KRB5CCNAME env var for the process.

Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent 5ddf1e0f

fs/cifs/cifs_spnego.c

+8 −1
Original line number Diff line number Diff line
@@ -86,6 +86,9 @@ struct key_type cifs_spnego_key_type = { 
/* strlen of ";user=" */

#define USER_KEY_LEN		6



/* strlen of ";pid=0x" */

#define PID_KEY_LEN		7



/* get a key struct with a SPNEGO security blob, suitable for session setup */

struct key *

cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
@@ -103,7 +106,8 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo) 
		   IP_KEY_LEN + INET6_ADDRSTRLEN +

		   MAX_MECH_STR_LEN +

		   UID_KEY_LEN + (sizeof(uid_t) * 2) +

		   USER_KEY_LEN + strlen(sesInfo->userName) + 1;

		   USER_KEY_LEN + strlen(sesInfo->userName) +

		   PID_KEY_LEN + (sizeof(pid_t) * 2) + 1;



	spnego_key = ERR_PTR(-ENOMEM);

	description = kzalloc(desc_len, GFP_KERNEL);
@@ -141,6 +145,9 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo) 
	dp = description + strlen(description);

	sprintf(dp, ";user=%s", sesInfo->userName);



	dp = description + strlen(description);

	sprintf(dp, ";pid=0x%x", current->pid);



	cFYI(1, ("key description = %s", description));

	spnego_key = request_key(&cifs_spnego_key_type, description, "");