diff options
| -rw-r--r-- | fs/nfs/super.c | 143 |
1 files changed, 78 insertions, 65 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index ebed63e0ff8..6eb145ea71a 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -854,6 +854,82 @@ static void nfs_set_mount_transport_protocol(struct nfs_parsed_mount_data *mnt) } /* + * Parse the value of the 'sec=' option. + * + * The flags setting is for v2/v3. The flavor_len setting is for v4. + * v2/v3 also need to know the difference between NULL and UNIX. + */ +static int nfs_parse_security_flavors(char *value, + struct nfs_parsed_mount_data *mnt) +{ + substring_t args[MAX_OPT_ARGS]; + + dfprintk(MOUNT, "NFS: parsing sec=%s option\n", value); + + switch (match_token(value, nfs_secflavor_tokens, args)) { + case Opt_sec_none: + mnt->flags &= ~NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 0; + mnt->auth_flavors[0] = RPC_AUTH_NULL; + break; + case Opt_sec_sys: + mnt->flags &= ~NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 0; + mnt->auth_flavors[0] = RPC_AUTH_UNIX; + break; + case Opt_sec_krb5: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5; + break; + case Opt_sec_krb5i: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5I; + break; + case Opt_sec_krb5p: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5P; + break; + case Opt_sec_lkey: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEY; + break; + case Opt_sec_lkeyi: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYI; + break; + case Opt_sec_lkeyp: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYP; + break; + case Opt_sec_spkm: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKM; + break; + case Opt_sec_spkmi: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMI; + break; + case Opt_sec_spkmp: + mnt->flags |= NFS_MOUNT_SECFLAVOUR; + mnt->auth_flavor_len = 1; + mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMP; + break; + default: + return 0; + } + + return 1; +} + +/* * Error-check and convert a string of mount options from user space into * a data structure */ @@ -1054,73 +1130,10 @@ static int nfs_parse_mount_options(char *raw, string = match_strdup(args); if (string == NULL) goto out_nomem; - token = match_token(string, nfs_secflavor_tokens, args); + rc = nfs_parse_security_flavors(string, mnt); kfree(string); - - /* - * The flags setting is for v2/v3. The flavor_len - * setting is for v4. v2/v3 also need to know the - * difference between NULL and UNIX. - */ - switch (token) { - case Opt_sec_none: - mnt->flags &= ~NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 0; - mnt->auth_flavors[0] = RPC_AUTH_NULL; - break; - case Opt_sec_sys: - mnt->flags &= ~NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 0; - mnt->auth_flavors[0] = RPC_AUTH_UNIX; - break; - case Opt_sec_krb5: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5; - break; - case Opt_sec_krb5i: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5I; - break; - case Opt_sec_krb5p: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5P; - break; - case Opt_sec_lkey: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEY; - break; - case Opt_sec_lkeyi: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYI; - break; - case Opt_sec_lkeyp: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYP; - break; - case Opt_sec_spkm: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKM; - break; - case Opt_sec_spkmi: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMI; - break; - case Opt_sec_spkmp: - mnt->flags |= NFS_MOUNT_SECFLAVOUR; - mnt->auth_flavor_len = 1; - mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMP; - break; - default: + if (!rc) goto out_unrec_sec; - } break; case Opt_proto: string = match_strdup(args); |