projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| a6a9cffa RS |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* | |
| 3 | * Copyright (C) 2020, Microsoft Corporation. | |
| 4 | * | |
| 5 | * Author(s): Steve French <stfrench@microsoft.com> | |
| 6 | * David Howells <dhowells@redhat.com> | |
| 7 | */ | |
| 8 | ||
| 5c6e5aa4 RS |
9 | #include "cifsglob.h" |
| 10 | #include "cifs_debug.h" | |
| 11 | #include "fs_context.h" | |
| 12 | ||
| 13 | static const match_table_t cifs_secflavor_tokens = { | |
| 14 | { Opt_sec_krb5, "krb5" }, | |
| 15 | { Opt_sec_krb5i, "krb5i" }, | |
| 16 | { Opt_sec_krb5p, "krb5p" }, | |
| 17 | { Opt_sec_ntlmsspi, "ntlmsspi" }, | |
| 18 | { Opt_sec_ntlmssp, "ntlmssp" }, | |
| 19 | { Opt_ntlm, "ntlm" }, | |
| 20 | { Opt_sec_ntlmi, "ntlmi" }, | |
| 21 | { Opt_sec_ntlmv2, "nontlm" }, | |
| 22 | { Opt_sec_ntlmv2, "ntlmv2" }, | |
| 23 | { Opt_sec_ntlmv2i, "ntlmv2i" }, | |
| 24 | { Opt_sec_lanman, "lanman" }, | |
| 25 | { Opt_sec_none, "none" }, | |
| 26 | ||
| 27 | { Opt_sec_err, NULL } | |
| 28 | }; | |
| 29 | ||
| 30 | int cifs_parse_security_flavors(char *value, struct smb_vol *vol) | |
| 31 | { | |
| 32 | ||
| 33 | substring_t args[MAX_OPT_ARGS]; | |
| 34 | ||
| 35 | /* | |
| 36 | * With mount options, the last one should win. Reset any existing | |
| 37 | * settings back to default. | |
| 38 | */ | |
| 39 | vol->sectype = Unspecified; | |
| 40 | vol->sign = false; | |
| 41 | ||
| 42 | switch (match_token(value, cifs_secflavor_tokens, args)) { | |
| 43 | case Opt_sec_krb5p: | |
| 44 | cifs_dbg(VFS, "sec=krb5p is not supported!\n"); | |
| 45 | return 1; | |
| 46 | case Opt_sec_krb5i: | |
| 47 | vol->sign = true; | |
| 48 | fallthrough; | |
| 49 | case Opt_sec_krb5: | |
| 50 | vol->sectype = Kerberos; | |
| 51 | break; | |
| 52 | case Opt_sec_ntlmsspi: | |
| 53 | vol->sign = true; | |
| 54 | fallthrough; | |
| 55 | case Opt_sec_ntlmssp: | |
| 56 | vol->sectype = RawNTLMSSP; | |
| 57 | break; | |
| 58 | case Opt_sec_ntlmi: | |
| 59 | vol->sign = true; | |
| 60 | fallthrough; | |
| 61 | case Opt_ntlm: | |
| 62 | vol->sectype = NTLM; | |
| 63 | break; | |
| 64 | case Opt_sec_ntlmv2i: | |
| 65 | vol->sign = true; | |
| 66 | fallthrough; | |
| 67 | case Opt_sec_ntlmv2: | |
| 68 | vol->sectype = NTLMv2; | |
| 69 | break; | |
| 70 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
| 71 | case Opt_sec_lanman: | |
| 72 | vol->sectype = LANMAN; | |
| 73 | break; | |
| 74 | #endif | |
| 75 | case Opt_sec_none: | |
| 76 | vol->nullauth = 1; | |
| 77 | break; | |
| 78 | default: | |
| 79 | cifs_dbg(VFS, "bad security option: %s\n", value); | |
| 80 | return 1; | |
| 81 | } | |
| 82 | ||
| 83 | return 0; | |
| 84 | } |