diff options
Diffstat (limited to 'lib/libc/posix1e/acl_set.c')
| -rw-r--r-- | lib/libc/posix1e/acl_set.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/lib/libc/posix1e/acl_set.c b/lib/libc/posix1e/acl_set.c new file mode 100644 index 0000000..fdc12b6 --- /dev/null +++ b/lib/libc/posix1e/acl_set.c @@ -0,0 +1,253 @@ +/*- + * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson + * All rights reserved. + * + * This software was developed by Robert Watson for the TrustedBSD Project. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +/* + * acl_set_file -- set a file/directory ACL by name + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include "namespace.h" +#include <sys/acl.h> +#include "un-namespace.h" + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "acl_support.h" + +/* + * For POSIX.1e-semantic ACLs, do a presort so the kernel doesn't have to + * (the POSIX.1e semantic code will reject unsorted ACL submission). If it's + * not a semantic that the library knows about, just submit it flat and + * assume the caller knows what they're up to. + */ +int +acl_set_file(const char *path_p, acl_type_t type, acl_t acl) +{ + + if (acl == NULL || path_p == NULL) { + errno = EINVAL; + return (-1); + } + type = _acl_type_unold(type); + if (_acl_type_not_valid_for_acl(acl, type)) { + errno = EINVAL; + return (-1); + } + if (_posix1e_acl(acl, type)) + _posix1e_acl_sort(acl); + + acl->ats_cur_entry = 0; + + return (__acl_set_file(path_p, type, &acl->ats_acl)); +} + +int +acl_set_link_np(const char *path_p, acl_type_t type, acl_t acl) +{ + + if (acl == NULL || path_p == NULL) { + errno = EINVAL; + return (-1); + } + type = _acl_type_unold(type); + if (_acl_type_not_valid_for_acl(acl, type)) { + errno = EINVAL; + return (-1); + } + if (_posix1e_acl(acl, type)) + _posix1e_acl_sort(acl); + + acl->ats_cur_entry = 0; + + return (__acl_set_link(path_p, type, &acl->ats_acl)); +} + +int +acl_set_fd(int fd, acl_t acl) +{ + + if (fpathconf(fd, _PC_ACL_NFS4) == 1) + return (acl_set_fd_np(fd, acl, ACL_TYPE_NFS4)); + + return (acl_set_fd_np(fd, acl, ACL_TYPE_ACCESS)); +} + +int +acl_set_fd_np(int fd, acl_t acl, acl_type_t type) +{ + + if (acl == NULL) { + errno = EINVAL; + return (-1); + } + type = _acl_type_unold(type); + if (_acl_type_not_valid_for_acl(acl, type)) { + errno = EINVAL; + return (-1); + } + if (_posix1e_acl(acl, type)) + _posix1e_acl_sort(acl); + + acl->ats_cur_entry = 0; + + return (___acl_set_fd(fd, type, &acl->ats_acl)); +} + +/* + * acl_set_permset() (23.4.23): sets the permissions of ACL entry entry_d + * with the permissions in permset_d + */ +int +acl_set_permset(acl_entry_t entry_d, acl_permset_t permset_d) +{ + + if (!entry_d) { + errno = EINVAL; + return (-1); + } + + if ((*permset_d & ACL_POSIX1E_BITS) != *permset_d) { + if ((*permset_d & ACL_NFS4_PERM_BITS) != *permset_d) { + errno = EINVAL; + return (-1); + } + if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { + errno = EINVAL; + return (-1); + } + _entry_brand_as(entry_d, ACL_BRAND_NFS4); + } + + entry_d->ae_perm = *permset_d; + + return (0); +} + +/* + * acl_set_qualifier() sets the qualifier (ae_id) of the tag for + * ACL entry entry_d to the value referred to by tag_qualifier_p + */ +int +acl_set_qualifier(acl_entry_t entry_d, const void *tag_qualifier_p) +{ + + if (!entry_d || !tag_qualifier_p) { + errno = EINVAL; + return (-1); + } + switch(entry_d->ae_tag) { + case ACL_USER: + case ACL_GROUP: + entry_d->ae_id = *(uid_t *)tag_qualifier_p; + break; + default: + errno = EINVAL; + return (-1); + } + + return (0); +} + +/* + * acl_set_tag_type() sets the tag type for ACL entry entry_d to the + * value of tag_type + */ +int +acl_set_tag_type(acl_entry_t entry_d, acl_tag_t tag_type) +{ + + if (entry_d == NULL) { + errno = EINVAL; + return (-1); + } + + switch(tag_type) { + case ACL_OTHER: + case ACL_MASK: + if (!_entry_brand_may_be(entry_d, ACL_BRAND_POSIX)) { + errno = EINVAL; + return (-1); + } + _entry_brand_as(entry_d, ACL_BRAND_POSIX); + break; + case ACL_EVERYONE: + if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { + errno = EINVAL; + return (-1); + } + _entry_brand_as(entry_d, ACL_BRAND_NFS4); + break; + } + + switch(tag_type) { + case ACL_USER_OBJ: + case ACL_USER: + case ACL_GROUP_OBJ: + case ACL_GROUP: + case ACL_MASK: + case ACL_OTHER: + case ACL_EVERYONE: + entry_d->ae_tag = tag_type; + return (0); + } + + errno = EINVAL; + return (-1); +} + +int +acl_set_entry_type_np(acl_entry_t entry_d, acl_entry_type_t entry_type) +{ + + if (entry_d == NULL) { + errno = EINVAL; + return (-1); + } + if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { + errno = EINVAL; + return (-1); + } + _entry_brand_as(entry_d, ACL_BRAND_NFS4); + + switch (entry_type) { + case ACL_ENTRY_TYPE_ALLOW: + case ACL_ENTRY_TYPE_DENY: + case ACL_ENTRY_TYPE_AUDIT: + case ACL_ENTRY_TYPE_ALARM: + entry_d->ae_entry_type = entry_type; + return (0); + } + + errno = EINVAL; + return (-1); +} |
