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smb: client: parse DNS domain name from domain= option

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If the user specified a DNS domain name in domain= mount option, then
use it instead of parsing it in NTLMSSP CHALLENGE_MESSAGE message.

Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Paulo Alcantara 2025-01-03 16:38:51 -03:00 committed by Steve French
parent ad46faff1a
commit 489d152310
1 changed files with 14 additions and 5 deletions
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19
fs/smb/client/connect.c
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@ -2279,12 +2279,13 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx __attribute__((unused)),
struct cifs_ses *
cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx)
{
int rc = 0;
int retries = 0;
unsigned int xid;
struct cifs_ses *ses;
struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr;
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr;
struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr;
struct cifs_ses *ses;
unsigned int xid;
int retries = 0;
size_t len;
int rc = 0;
xid = get_xid();
@ -2374,6 +2375,14 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx)
ses->domainName = kstrdup(ctx->domainname, GFP_KERNEL);
if (!ses->domainName)
goto get_ses_fail;
len = strnlen(ctx->domainname, CIFS_MAX_DOMAINNAME_LEN);
if (!cifs_netbios_name(ctx->domainname, len)) {
ses->dns_dom = kstrndup(ctx->domainname,
len, GFP_KERNEL);
if (!ses->dns_dom)
goto get_ses_fail;
}
}
strscpy(ses->workstation_name, ctx->workstation_name, sizeof(ses->workstation_name));