diff options
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/cifsglob.h | 15 | ||||
| -rw-r--r-- | fs/cifs/cifssmb.c | 2 | ||||
| -rw-r--r-- | fs/cifs/connect.c | 12 | ||||
| -rw-r--r-- | fs/cifs/sess.c | 6 | ||||
| -rw-r--r-- | fs/cifs/smb2pdu.c | 2 |
5 files changed, 26 insertions, 11 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index b296964b8afa..b565d83ba89e 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -2031,4 +2031,19 @@ static inline bool is_smb1_server(struct TCP_Server_Info *server) return strcmp(server->vals->version_string, SMB1_VERSION_STRING) == 0; } +static inline bool is_tcon_dfs(struct cifs_tcon *tcon) +{ + /* + * For SMB1, see MS-CIFS 2.4.55 SMB_COM_TREE_CONNECT_ANDX (0x75) and MS-CIFS 3.3.4.4 DFS + * Subsystem Notifies That a Share Is a DFS Share. + * + * For SMB2+, see MS-SMB2 2.2.10 SMB2 TREE_CONNECT Response and MS-SMB2 3.3.4.14 Server + * Application Updates a Share. + */ + if (!tcon || !tcon->ses || !tcon->ses->server) + return false; + return is_smb1_server(tcon->ses->server) ? tcon->Flags & SMB_SHARE_IS_IN_DFS : + tcon->share_flags & (SHI1005_FLAGS_DFS | SHI1005_FLAGS_DFS_ROOT); +} + #endif /* _CIFS_GLOB_H */ diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 0e763d2dcf16..0496934feecb 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -581,7 +581,7 @@ should_set_ext_sec_flag(enum securityEnum sectype) if (global_secflags & (CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP)) return true; - /* Fallthrough */ + fallthrough; default: return false; } diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index a275ee399dce..a5731dd6e656 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1378,25 +1378,25 @@ static int cifs_parse_security_flavors(char *value, return 1; case Opt_sec_krb5i: vol->sign = true; - /* Fallthrough */ + fallthrough; case Opt_sec_krb5: vol->sectype = Kerberos; break; case Opt_sec_ntlmsspi: vol->sign = true; - /* Fallthrough */ + fallthrough; case Opt_sec_ntlmssp: vol->sectype = RawNTLMSSP; break; case Opt_sec_ntlmi: vol->sign = true; - /* Fallthrough */ + fallthrough; case Opt_ntlm: vol->sectype = NTLM; break; case Opt_sec_ntlmv2i: vol->sign = true; - /* Fallthrough */ + fallthrough; case Opt_sec_ntlmv2: vol->sectype = NTLMv2; break; @@ -2187,7 +2187,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, vol->password = NULL; break; } - /* Fallthrough - to Opt_pass below.*/ + fallthrough; /* to Opt_pass below */ case Opt_pass: /* Obtain the value string */ value = strchr(data, '='); @@ -4909,7 +4909,7 @@ int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol) if (!tcon) continue; /* Make sure that requests go through new root servers */ - if (tcon->share_flags & (SHI1005_FLAGS_DFS | SHI1005_FLAGS_DFS_ROOT)) { + if (is_tcon_dfs(tcon)) { put_root_ses(root_ses); set_root_ses(cifs_sb, ses, &root_ses); } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 69cd5856621b..de564368a887 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -798,7 +798,7 @@ cifs_select_sectype(struct TCP_Server_Info *server, enum securityEnum requested) if ((server->sec_kerberos || server->sec_mskerberos) && (global_secflags & CIFSSEC_MAY_KRB5)) return Kerberos; - /* Fallthrough */ + fallthrough; default: return Unspecified; } @@ -815,7 +815,7 @@ cifs_select_sectype(struct TCP_Server_Info *server, enum securityEnum requested) default: break; } - /* Fallthrough - to attempt LANMAN authentication next */ + fallthrough; /* to attempt LANMAN authentication next */ case CIFS_NEGFLAVOR_LANMAN: switch (requested) { case LANMAN: @@ -823,7 +823,7 @@ cifs_select_sectype(struct TCP_Server_Info *server, enum securityEnum requested) case Unspecified: if (global_secflags & CIFSSEC_MAY_LANMAN) return LANMAN; - /* Fallthrough */ + fallthrough; default: return Unspecified; } diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 667d70aa335f..96c172d94fba 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1101,7 +1101,7 @@ smb2_select_sectype(struct TCP_Server_Info *server, enum securityEnum requested) if ((server->sec_kerberos || server->sec_mskerberos) && (global_secflags & CIFSSEC_MAY_KRB5)) return Kerberos; - /* Fallthrough */ + fallthrough; default: return Unspecified; } |