diff options
Diffstat (limited to 'kcm/acl.c')
| -rw-r--r-- | kcm/acl.c | 57 |
1 files changed, 39 insertions, 18 deletions
diff --git a/kcm/acl.c b/kcm/acl.c index 1b96204bd959a..5102c13359650 100644 --- a/kcm/acl.c +++ b/kcm/acl.c @@ -2,6 +2,8 @@ * Copyright (c) 2005, PADL Software Pty Ltd. * All rights reserved. * + * Portions Copyright (c) 2009 Apple Inc. All rights reserved. + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -32,8 +34,6 @@ #include "kcm_locl.h" -RCSID("$Id: acl.c 20472 2007-04-20 10:43:25Z lha $"); - krb5_error_code kcm_access(krb5_context context, kcm_client *client, @@ -57,6 +57,9 @@ kcm_access(krb5_context context, case KCM_OP_CHMOD: case KCM_OP_GET_INITIAL_TICKET: case KCM_OP_GET_TICKET: + case KCM_OP_MOVE_CACHE: + case KCM_OP_SET_DEFAULT_CACHE: + case KCM_OP_SET_KDC_OFFSET: write_p = 1; read_p = 0; break; @@ -66,52 +69,70 @@ kcm_access(krb5_context context, case KCM_OP_GEN_NEW: case KCM_OP_RETRIEVE: case KCM_OP_GET_PRINCIPAL: - case KCM_OP_GET_FIRST: - case KCM_OP_GET_NEXT: - case KCM_OP_END_GET: - case KCM_OP_MAX: + case KCM_OP_GET_CRED_UUID_LIST: + case KCM_OP_GET_CRED_BY_UUID: + case KCM_OP_GET_CACHE_UUID_LIST: + case KCM_OP_GET_CACHE_BY_UUID: + case KCM_OP_GET_DEFAULT_CACHE: + case KCM_OP_GET_KDC_OFFSET: write_p = 0; read_p = 1; break; + default: + ret = KRB5_FCC_PERM; + goto out; } if (ccache->flags & KCM_FLAGS_OWNER_IS_SYSTEM) { /* System caches cannot be reinitialized or destroyed by users */ if (opcode == KCM_OP_INITIALIZE || opcode == KCM_OP_DESTROY || - opcode == KCM_OP_REMOVE_CRED) { + opcode == KCM_OP_REMOVE_CRED || + opcode == KCM_OP_MOVE_CACHE) { ret = KRB5_FCC_PERM; goto out; } /* Let root always read system caches */ - if (client->uid == 0) { + if (CLIENT_IS_ROOT(client)) { ret = 0; goto out; } } - mask = 0; + /* start out with "other" mask */ + mask = S_IROTH|S_IWOTH; - /* Root may do whatever they like */ - if (client->uid == ccache->uid || CLIENT_IS_ROOT(client)) { + /* root can do anything */ + if (CLIENT_IS_ROOT(client)) { + if (read_p) + mask |= S_IRUSR|S_IRGRP|S_IROTH; + if (write_p) + mask |= S_IWUSR|S_IWGRP|S_IWOTH; + } + /* same session same as owner */ + if (kcm_is_same_session(client, ccache->uid, ccache->session)) { + if (read_p) + mask |= S_IROTH; + if (write_p) + mask |= S_IWOTH; + } + /* owner */ + if (client->uid == ccache->uid) { if (read_p) mask |= S_IRUSR; if (write_p) mask |= S_IWUSR; - } else if (client->gid == ccache->gid || CLIENT_IS_ROOT(client)) { + } + /* group */ + if (client->gid == ccache->gid) { if (read_p) mask |= S_IRGRP; if (write_p) mask |= S_IWGRP; - } else { - if (read_p) - mask |= S_IROTH; - if (write_p) - mask |= S_IWOTH; } - ret = ((ccache->mode & mask) == mask) ? 0 : KRB5_FCC_PERM; + ret = (ccache->mode & mask) ? 0 : KRB5_FCC_PERM; out: if (ret) { |