Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 111146
b: refs/heads/master
c: 7c9c376
h: refs/heads/master
v: v3
  • Loading branch information
Steve French committed Sep 23, 2008
1 parent 14e33d0 commit 04fbd5a
Show file tree
Hide file tree
Showing 2 changed files with 27 additions and 10 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a12a1ac7a474b3680b9cce9f64a4f78123aecf37
refs/heads/master: 7c9c3760b3a5ae87ee4d661703b6d5de3999fe46
35 changes: 26 additions & 9 deletions trunk/fs/cifs/cifs_spnego.c
Original file line number Diff line number Diff line change
Expand Up @@ -66,11 +66,28 @@ struct key_type cifs_spnego_key_type = {
.describe = user_describe,
};

#define MAX_VER_STR_LEN 8 /* length of longest version string e.g.
strlen("ver=0xFF") */
#define MAX_MECH_STR_LEN 13 /* length of longest security mechanism name, eg
in future could have strlen(";sec=ntlmsspi") */
#define MAX_IPV6_ADDR_LEN 42 /* eg FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/60 */
/* length of longest version string e.g. strlen("ver=0xFF") */
#define MAX_VER_STR_LEN 8

/* length of longest security mechanism name, eg in future could have
* strlen(";sec=ntlmsspi") */
#define MAX_MECH_STR_LEN 13

/* max possible addr len eg FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/60 */
#define MAX_IPV6_ADDR_LEN 42

/* strlen of "host=" */
#define HOST_KEY_LEN 5

/* strlen of ";ip4=" or ";ip6=" */
#define IP_KEY_LEN 5

/* strlen of ";uid=0x" */
#define UID_KEY_LEN 7

/* strlen of ";user=" */
#define USER_KEY_LEN 6

/* get a key struct with a SPNEGO security blob, suitable for session setup */
struct key *
cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
Expand All @@ -84,11 +101,11 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
/* length of fields (with semicolons): ver=0xyz ip4=ipaddress
host=hostname sec=mechanism uid=0xFF user=username */
desc_len = MAX_VER_STR_LEN +
6 /* len of "host=" */ + strlen(hostname) +
5 /* len of ";ipv4=" */ + MAX_IPV6_ADDR_LEN +
HOST_KEY_LEN + strlen(hostname) +
IP_KEY_LEN + MAX_IPV6_ADDR_LEN +
MAX_MECH_STR_LEN +
7 /* len of ";uid=0x" */ + (sizeof(uid_t) * 2) +
6 /* len of ";user=" */ + strlen(sesInfo->userName) + 1;
UID_KEY_LEN + (sizeof(uid_t) * 2) +
USER_KEY_LEN + strlen(sesInfo->userName) + 1;

spnego_key = ERR_PTR(-ENOMEM);
description = kzalloc(desc_len, GFP_KERNEL);
Expand Down

0 comments on commit 04fbd5a

Please sign in to comment.