diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index b6c2a787be06..68da230c7f11 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -952,7 +952,7 @@ struct cifs_ses { and after mount option parsing we fill it */ char *domainName; char *password; - char *workstation_name; + char workstation_name[CIFS_MAX_WORKSTATION_LEN]; struct session_key auth_key; struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */ enum securityEnum sectype; /* what security flavor was specified? */ @@ -2018,4 +2018,17 @@ static inline u64 cifs_flock_len(struct file_lock *fl) return fl->fl_end == OFFSET_MAX ? 0 : fl->fl_end - fl->fl_start + 1; } +static inline size_t ntlmssp_workstation_name_size(const struct cifs_ses *ses) +{ + if (WARN_ON_ONCE(!ses || !ses->server)) + return 0; + /* + * Make workstation name no more than 15 chars when using insecure dialects as some legacy + * servers do require it during NTLMSSP. + */ + if (ses->server->dialect <= SMB20_PROT_ID) + return min_t(size_t, sizeof(ses->workstation_name), RFC1001_NAME_LEN_WITH_NULL); + return sizeof(ses->workstation_name); +} + #endif /* _CIFS_GLOB_H */ |