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cifs: Cleanup and thus reduce smb session structure and fields used during authentication

Bladeren bron 
Removed following fields from smb session structure
 cryptkey, ntlmv2_hash, tilen, tiblob
and ntlmssp_auth structure is allocated dynamically only if the auth mech
in NTLMSSP.

response field within a session_key structure is used to initially store the
target info (either plucked from type 2 challenge packet in case of NTLMSSP
or fabricated in case of NTLMv2 without extended security) and then to store
Message Authentication Key (mak) (session key + client response).

Server challenge or cryptkey needed during a NTLMSSP authentication
is now part of ntlmssp_auth structure which gets allocated and freed
once authenticaiton process is done.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Shirish Pargaonkar
2010-10-28 09:53:07 -05:00
gecommit door Steve French
bovenliggende d3ba50b17a
commit d3686d54c7
4 gewijzigde bestanden met toevoegingen van 55 en 47 verwijderingen
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11
fs/cifs/connect.c
Bestand weergeven

@@ -1818,8 +1818,6 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
if (ses == NULL)
goto get_ses_fail;
ses->tilen = 0;
ses->tiblob = NULL;
/* new SMB session uses our server ref */
ses->server = server;
if (server->addr.sockAddr6.sin6_family == AF_INET6)
@@ -1840,10 +1838,9 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
goto get_ses_fail;
}
if (volume_info->domainname) {
int len = strlen(volume_info->domainname);
ses->domainName = kmalloc(len + 1, GFP_KERNEL);
if (ses->domainName)
strcpy(ses->domainName, volume_info->domainname);
ses->domainName = kstrdup(volume_info->domainname, GFP_KERNEL);
if (!ses->domainName)
goto get_ses_fail;
}
ses->cred_uid = volume_info->cred_uid;
ses->linux_uid = volume_info->linux_uid;
@@ -3213,6 +3210,8 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *ses,
kfree(ses->auth_key.response);
ses->auth_key.response = NULL;
ses->auth_key.len = 0;
kfree(ses->ntlmssp);
ses->ntlmssp = NULL;
return rc;
}