diff options
Diffstat (limited to 'fs/cifs/fs_context.c')
| -rw-r--r-- | fs/cifs/fs_context.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c index f50dfc2d2e44..dd9da734e346 100644 --- a/fs/cifs/fs_context.c +++ b/fs/cifs/fs_context.c @@ -6,3 +6,79 @@ * David Howells <dhowells@redhat.com> */ +#include "cifsglob.h" +#include "cifs_debug.h" +#include "fs_context.h" + +static const match_table_t cifs_secflavor_tokens = { + { Opt_sec_krb5, "krb5" }, + { Opt_sec_krb5i, "krb5i" }, + { Opt_sec_krb5p, "krb5p" }, + { Opt_sec_ntlmsspi, "ntlmsspi" }, + { Opt_sec_ntlmssp, "ntlmssp" }, + { Opt_ntlm, "ntlm" }, + { Opt_sec_ntlmi, "ntlmi" }, + { Opt_sec_ntlmv2, "nontlm" }, + { Opt_sec_ntlmv2, "ntlmv2" }, + { Opt_sec_ntlmv2i, "ntlmv2i" }, + { Opt_sec_lanman, "lanman" }, + { Opt_sec_none, "none" }, + + { Opt_sec_err, NULL } +}; + +int cifs_parse_security_flavors(char *value, struct smb_vol *vol) +{ + + substring_t args[MAX_OPT_ARGS]; + + /* + * With mount options, the last one should win. Reset any existing + * settings back to default. + */ + vol->sectype = Unspecified; + vol->sign = false; + + switch (match_token(value, cifs_secflavor_tokens, args)) { + case Opt_sec_krb5p: + cifs_dbg(VFS, "sec=krb5p is not supported!\n"); + return 1; + case Opt_sec_krb5i: + vol->sign = true; + fallthrough; + case Opt_sec_krb5: + vol->sectype = Kerberos; + break; + case Opt_sec_ntlmsspi: + vol->sign = true; + fallthrough; + case Opt_sec_ntlmssp: + vol->sectype = RawNTLMSSP; + break; + case Opt_sec_ntlmi: + vol->sign = true; + fallthrough; + case Opt_ntlm: + vol->sectype = NTLM; + break; + case Opt_sec_ntlmv2i: + vol->sign = true; + fallthrough; + case Opt_sec_ntlmv2: + vol->sectype = NTLMv2; + break; +#ifdef CONFIG_CIFS_WEAK_PW_HASH + case Opt_sec_lanman: + vol->sectype = LANMAN; + break; +#endif + case Opt_sec_none: + vol->nullauth = 1; + break; + default: + cifs_dbg(VFS, "bad security option: %s\n", value); + return 1; + } + + return 0; +} |