/*
- $Id: acls.c,v 1.6 2009-11-26 18:17:12 franklahm Exp $
- Copyright (c) 2008,2009 Frank Lahm <franklahm@gmail.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- */
+ Copyright (c) 2008, 2009, 2010 Frank Lahm <franklahm@gmail.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#include <grp.h>
#include <pwd.h>
#include <errno.h>
+#ifdef HAVE_SOLARIS_ACLS
#include <sys/acl.h>
+#endif
+#ifdef HAVE_POSIX_ACLS
+#include <sys/acl.h>
+#include <acl/libacl.h>
+#endif
#include <atalk/adouble.h>
#include <atalk/vfs.h>
#include "acl_mappings.h"
/* for map_acl() */
-#define SOLARIS_2_DARWIN 1
-#define DARWIN_2_SOLARIS 2
+#define SOLARIS_2_DARWIN 1
+#define DARWIN_2_SOLARIS 2
+#define POSIX_DEFAULT_2_DARWIN 3
+#define POSIX_ACCESS_2_DARWIN 4
+#define DARWIN_2_POSIX 5
+
+#define MAP_MASK 31
+#define IS_DIR 32
/********************************************************
* Basic and helper funcs
/*
Takes a users name, uid and primary gid and checks if user is member of any group
- Returns -1 if no or error, 0 if yes
+ Returns -1 if no or error, 0 if yes
*/
-static int check_group(char *name, uid_t uid, gid_t pgid, gid_t path_gid)
+static int check_group(char *name, uid_t uid _U_, gid_t pgid, gid_t path_gid)
{
int i;
- struct group *grp;
+ struct group *grp;
if (pgid == path_gid)
- return 0;
+ return 0;
grp = getgrgid(path_gid);
if (!grp)
- return -1;
+ return -1;
i = 0;
while (grp->gr_mem[i] != NULL) {
- if ( (strcmp(grp->gr_mem[i], name)) == 0 ) {
- LOG(log_debug, logtype_afpd, "check_group: requested user:%s is member of: %s", name, grp->gr_name);
- return 0;
- }
- i++;
+ if ( (strcmp(grp->gr_mem[i], name)) == 0 ) {
+ LOG(log_debug, logtype_afpd, "check_group: requested user:%s is member of: %s", name, grp->gr_name);
+ return 0;
+ }
+ i++;
}
-
+
return -1;
}
-/*
- Remove any trivial ACE "in-place". Returns no of non-trivial ACEs
+/********************************************************
+ * Solaris funcs
+ ********************************************************/
+
+#ifdef HAVE_SOLARIS_ACLS
+/*
+ Remove any trivial ACE "in-place". Returns no of non-trivial ACEs
*/
static int strip_trivial_aces(ace_t **saces, int sacecount)
{
/* Count non-trivial ACEs */
for (i=0; i < sacecount; ) {
- if ( ! (aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)))
- nontrivaces++;
- i++;
+ if ( ! (aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)))
+ nontrivaces++;
+ i++;
}
/* malloc buffer for new ACL */
if ((new_aces = malloc(nontrivaces * sizeof(ace_t))) == NULL) {
- LOG(log_error, logtype_afpd, "strip_trivial_aces: malloc %s", strerror(errno));
- return -1;
+ LOG(log_error, logtype_afpd, "strip_trivial_aces: malloc %s", strerror(errno));
+ return -1;
}
/* Copy non-trivial ACEs */
for (i=0, j=0; i < sacecount; ) {
- if ( ! (aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE))) {
- memcpy(&new_aces[j], &aces[i], sizeof(ace_t));
- j++;
- }
- i++;
+ if ( ! (aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE))) {
+ memcpy(&new_aces[j], &aces[i], sizeof(ace_t));
+ j++;
+ }
+ i++;
}
free(aces);
return nontrivaces;
}
-/*
- Remove non-trivial ACEs "in-place". Returns no of trivial ACEs.
- */
+/*
+ Remove non-trivial ACEs "in-place". Returns no of trivial ACEs.
+*/
static int strip_nontrivial_aces(ace_t **saces, int sacecount)
{
int i,j;
/* Count trivial ACEs */
for (i=0; i < sacecount; ) {
- if ((aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)))
- trivaces++;
- i++;
+ if ((aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)))
+ trivaces++;
+ i++;
}
/* malloc buffer for new ACL */
if ((new_aces = malloc(trivaces * sizeof(ace_t))) == NULL) {
- LOG(log_error, logtype_afpd, "strip_nontrivial_aces: malloc %s", strerror(errno));
- return -1;
+ LOG(log_error, logtype_afpd, "strip_nontrivial_aces: malloc %s", strerror(errno));
+ return -1;
}
/* Copy trivial ACEs */
for (i=0, j=0; i < sacecount; ) {
- if ((aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE))) {
- memcpy(&new_aces[j], &aces[i], sizeof(ace_t));
- j++;
- }
- i++;
+ if ((aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE))) {
+ memcpy(&new_aces[j], &aces[i], sizeof(ace_t));
+ j++;
+ }
+ i++;
}
/* Free old ACEs */
free(aces);
return trivaces;
}
-/*
- Concatenate ACEs
- */
+/*
+ Concatenate ACEs
+*/
static ace_t *concat_aces(ace_t *aces1, int ace1count, ace_t *aces2, int ace2count)
{
ace_t *new_aces;
/* malloc buffer for new ACL */
if ((new_aces = malloc((ace1count + ace2count) * sizeof(ace_t))) == NULL) {
- LOG(log_error, logtype_afpd, "combine_aces: malloc %s", strerror(errno));
- return NULL;
+ LOG(log_error, logtype_afpd, "combine_aces: malloc %s", strerror(errno));
+ return NULL;
}
/* Copy ACEs from buf1 */
for (i=0; i < ace1count; ) {
- memcpy(&new_aces[i], &aces1[i], sizeof(ace_t));
- i++;
+ memcpy(&new_aces[i], &aces1[i], sizeof(ace_t));
+ i++;
}
j = i;
/* Copy ACEs from buf2 */
for (i=0; i < ace2count; ) {
- memcpy(&new_aces[j], &aces2[i], sizeof(ace_t));
- i++;
- j++;
+ memcpy(&new_aces[j], &aces2[i], sizeof(ace_t));
+ i++;
+ j++;
}
return new_aces;
}
-/*
- Maps ACE array from Solaris to Darwin. Darwin ACEs are stored in network byte order.
- Return numer of mapped ACEs or -1 on error.
- All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
- */
+/*
+ Maps ACE array from Solaris to Darwin. Darwin ACEs are stored in network byte order.
+ Return numer of mapped ACEs or -1 on error.
+ All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
+*/
static int map_aces_solaris_to_darwin(ace_t *aces, darwin_ace_t *darwin_aces, int ace_count)
{
int i, count = 0;
LOG(log_debug7, logtype_afpd, "map_aces_solaris_to_darwin: parsing %d ACES", ace_count);
while(ace_count--) {
- LOG(log_debug7, logtype_afpd, "map_aces_solaris_to_darwin: parsing ACE No. %d", ace_count + 1);
- /* if its a ACE resulting from nfsv4 mode mapping, discard it */
- if (aces->a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
- LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: trivial ACE");
- aces++;
- continue;
- }
-
- if ( ! (aces->a_flags & ACE_IDENTIFIER_GROUP) ) {
- /* its a user ace */
- LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: found user ACE with uid: %d", aces->a_who);
- pwd = getpwuid(aces->a_who);
- if (!pwd) {
- LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getpwuid error: %s", strerror(errno));
- return -1;
- }
- LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: uid: %d -> name: %s", aces->a_who, pwd->pw_name);
- if ( (getuuidfromname(pwd->pw_name, UUID_USER, darwin_aces->darwin_ace_uuid)) != 0) {
- LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getuuidfromname error");
- return -1;
- }
- } else {
- /* its a group ace */
- LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: found group ACE with gid: %d", aces->a_who);
- grp = getgrgid(aces->a_who);
- if (!grp) {
- LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getgrgid error: %s", strerror(errno));
- return -1;
- }
- LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: gid: %d -> name: %s", aces->a_who, grp->gr_name);
- if ( (getuuidfromname(grp->gr_name, UUID_GROUP, darwin_aces->darwin_ace_uuid)) != 0) {
- LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getuuidfromname error");
- return -1;
- }
- }
-
- /* map flags */
- if (aces->a_type == ACE_ACCESS_ALLOWED_ACE_TYPE)
- flags = DARWIN_ACE_FLAGS_PERMIT;
- else if (aces->a_type == ACE_ACCESS_DENIED_ACE_TYPE)
- flags = DARWIN_ACE_FLAGS_DENY;
- else { /* unsupported type */
- aces++;
- continue;
- }
- for(i=0; nfsv4_to_darwin_flags[i].from != 0; i++) {
- if (aces->a_flags & nfsv4_to_darwin_flags[i].from)
- flags |= nfsv4_to_darwin_flags[i].to;
- }
- darwin_aces->darwin_ace_flags = htonl(flags);
-
- /* map rights */
- rights = 0;
- for (i=0; nfsv4_to_darwin_rights[i].from != 0; i++) {
- if (aces->a_access_mask & nfsv4_to_darwin_rights[i].from)
- rights |= nfsv4_to_darwin_rights[i].to;
- }
- darwin_aces->darwin_ace_rights = htonl(rights);
-
- count++;
- aces++;
- darwin_aces++;
+ LOG(log_debug7, logtype_afpd, "map_aces_solaris_to_darwin: parsing ACE No. %d", ace_count + 1);
+ /* if its a ACE resulting from nfsv4 mode mapping, discard it */
+ if (aces->a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
+ LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: trivial ACE");
+ aces++;
+ continue;
+ }
+
+ if ( ! (aces->a_flags & ACE_IDENTIFIER_GROUP) ) {
+ /* its a user ace */
+ LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: found user ACE with uid: %d", aces->a_who);
+ pwd = getpwuid(aces->a_who);
+ if (!pwd) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getpwuid error: %s", strerror(errno));
+ return -1;
+ }
+ LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: uid: %d -> name: %s", aces->a_who, pwd->pw_name);
+ if ( (getuuidfromname(pwd->pw_name, UUID_USER, darwin_aces->darwin_ace_uuid)) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getuuidfromname error");
+ return -1;
+ }
+ } else {
+ /* its a group ace */
+ LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: found group ACE with gid: %d", aces->a_who);
+ grp = getgrgid(aces->a_who);
+ if (!grp) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getgrgid error: %s", strerror(errno));
+ return -1;
+ }
+ LOG(log_debug, logtype_afpd, "map_aces_solaris_to_darwin: gid: %d -> name: %s", aces->a_who, grp->gr_name);
+ if ( (getuuidfromname(grp->gr_name, UUID_GROUP, darwin_aces->darwin_ace_uuid)) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getuuidfromname error");
+ return -1;
+ }
+ }
+
+ /* map flags */
+ if (aces->a_type == ACE_ACCESS_ALLOWED_ACE_TYPE)
+ flags = DARWIN_ACE_FLAGS_PERMIT;
+ else if (aces->a_type == ACE_ACCESS_DENIED_ACE_TYPE)
+ flags = DARWIN_ACE_FLAGS_DENY;
+ else { /* unsupported type */
+ aces++;
+ continue;
+ }
+ for(i=0; nfsv4_to_darwin_flags[i].from != 0; i++) {
+ if (aces->a_flags & nfsv4_to_darwin_flags[i].from)
+ flags |= nfsv4_to_darwin_flags[i].to;
+ }
+ darwin_aces->darwin_ace_flags = htonl(flags);
+
+ /* map rights */
+ rights = 0;
+ for (i=0; nfsv4_to_darwin_rights[i].from != 0; i++) {
+ if (aces->a_access_mask & nfsv4_to_darwin_rights[i].from)
+ rights |= nfsv4_to_darwin_rights[i].to;
+ }
+ darwin_aces->darwin_ace_rights = htonl(rights);
+
+ count++;
+ aces++;
+ darwin_aces++;
}
return count;
}
-/*
- Maps ACE array from Darwin to Solaris. Darwin ACEs are expected in network byte order.
- Return numer of mapped ACEs or -1 on error.
- All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
- */
+/*
+ Maps ACE array from Darwin to Solaris. Darwin ACEs are expected in network byte order.
+ Return numer of mapped ACEs or -1 on error.
+ All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
+*/
int map_aces_darwin_to_solaris(darwin_ace_t *darwin_aces, ace_t *nfsv4_aces, int ace_count)
{
int i, mapped_aces = 0;
struct group *grp;
while(ace_count--) {
- nfsv4_ace_flags = 0;
- nfsv4_ace_rights = 0;
-
- /* uid/gid first */
- if ( (getnamefromuuid(darwin_aces->darwin_ace_uuid, &name, &uuidtype)) != 0)
- return -1;
- if (uuidtype == UUID_USER) {
- pwd = getpwnam(name);
- if (!pwd) {
- LOG(log_error, logtype_afpd, "map_aces_darwin_to_solaris: getpwnam: %s", strerror(errno));
- return -1;
- }
- nfsv4_aces->a_who = pwd->pw_uid;
- } else { /* hopefully UUID_GROUP*/
- grp = getgrnam(name);
- if (!grp) {
- LOG(log_error, logtype_afpd, "map_aces_darwin_to_solaris: getgrnam: %s", strerror(errno));
- return -1;
- }
- nfsv4_aces->a_who = (uid_t)(grp->gr_gid);
- nfsv4_ace_flags |= ACE_IDENTIFIER_GROUP;
- }
- free(name);
- name = NULL;
-
- /* now type: allow/deny */
- darwin_ace_flags = ntohl(darwin_aces->darwin_ace_flags);
- if (darwin_ace_flags & DARWIN_ACE_FLAGS_PERMIT)
- nfsv4_aces->a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
- else if (darwin_ace_flags & DARWIN_ACE_FLAGS_DENY)
- nfsv4_aces->a_type = ACE_ACCESS_DENIED_ACE_TYPE;
- else { /* unsupported type */
- darwin_aces++;
- continue;
- }
- /* map flags */
- for(i=0; darwin_to_nfsv4_flags[i].from != 0; i++) {
- if (darwin_ace_flags & darwin_to_nfsv4_flags[i].from)
- nfsv4_ace_flags |= darwin_to_nfsv4_flags[i].to;
- }
-
- /* map rights */
- darwin_ace_rights = ntohl(darwin_aces->darwin_ace_rights);
- for (i=0; darwin_to_nfsv4_rights[i].from != 0; i++) {
- if (darwin_ace_rights & darwin_to_nfsv4_rights[i].from)
- nfsv4_ace_rights |= darwin_to_nfsv4_rights[i].to;
- }
-
- LOG(log_debug9, logtype_afpd, "map_aces_darwin_to_solaris: ACE flags: Darwin:%08x -> NFSv4:%04x", darwin_ace_flags, nfsv4_ace_flags);
- LOG(log_debug9, logtype_afpd, "map_aces_darwin_to_solaris: ACE rights: Darwin:%08x -> NFSv4:%08x", darwin_ace_rights, nfsv4_ace_rights);
-
- nfsv4_aces->a_flags = nfsv4_ace_flags;
- nfsv4_aces->a_access_mask = nfsv4_ace_rights;
-
- mapped_aces++;
- darwin_aces++;
- nfsv4_aces++;
+ nfsv4_ace_flags = 0;
+ nfsv4_ace_rights = 0;
+
+ /* uid/gid first */
+ if ( (getnamefromuuid(darwin_aces->darwin_ace_uuid, &name, &uuidtype)) != 0)
+ return -1;
+ if (uuidtype == UUID_USER) {
+ pwd = getpwnam(name);
+ if (!pwd) {
+ LOG(log_error, logtype_afpd, "map_aces_darwin_to_solaris: getpwnam: %s", strerror(errno));
+ return -1;
+ }
+ nfsv4_aces->a_who = pwd->pw_uid;
+ } else { /* hopefully UUID_GROUP*/
+ grp = getgrnam(name);
+ if (!grp) {
+ LOG(log_error, logtype_afpd, "map_aces_darwin_to_solaris: getgrnam: %s", strerror(errno));
+ return -1;
+ }
+ nfsv4_aces->a_who = (uid_t)(grp->gr_gid);
+ nfsv4_ace_flags |= ACE_IDENTIFIER_GROUP;
+ }
+ free(name);
+ name = NULL;
+
+ /* now type: allow/deny */
+ darwin_ace_flags = ntohl(darwin_aces->darwin_ace_flags);
+ if (darwin_ace_flags & DARWIN_ACE_FLAGS_PERMIT)
+ nfsv4_aces->a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
+ else if (darwin_ace_flags & DARWIN_ACE_FLAGS_DENY)
+ nfsv4_aces->a_type = ACE_ACCESS_DENIED_ACE_TYPE;
+ else { /* unsupported type */
+ darwin_aces++;
+ continue;
+ }
+ /* map flags */
+ for(i=0; darwin_to_nfsv4_flags[i].from != 0; i++) {
+ if (darwin_ace_flags & darwin_to_nfsv4_flags[i].from)
+ nfsv4_ace_flags |= darwin_to_nfsv4_flags[i].to;
+ }
+
+ /* map rights */
+ darwin_ace_rights = ntohl(darwin_aces->darwin_ace_rights);
+ for (i=0; darwin_to_nfsv4_rights[i].from != 0; i++) {
+ if (darwin_ace_rights & darwin_to_nfsv4_rights[i].from)
+ nfsv4_ace_rights |= darwin_to_nfsv4_rights[i].to;
+ }
+
+ LOG(log_debug9, logtype_afpd, "map_aces_darwin_to_solaris: ACE flags: Darwin:%08x -> NFSv4:%04x", darwin_ace_flags, nfsv4_ace_flags);
+ LOG(log_debug9, logtype_afpd, "map_aces_darwin_to_solaris: ACE rights: Darwin:%08x -> NFSv4:%08x", darwin_ace_rights, nfsv4_ace_rights);
+
+ nfsv4_aces->a_flags = nfsv4_ace_flags;
+ nfsv4_aces->a_access_mask = nfsv4_ace_rights;
+
+ mapped_aces++;
+ darwin_aces++;
+ nfsv4_aces++;
}
return mapped_aces;
}
+#endif /* HAVE_SOLARIS_ACLS */
-/********************************************************
- * 2nd level funcs
- ********************************************************/
+/*
+ * Map ACEs from POSIX to Darwin.
+ * type is either POSIX_DEFAULT_2_DARWIN or POSIX_ACCESS_2_DARWIN, cf. acl_get_file.
+ * Return number of mapped ACES, -1 on error.
+ */
+#ifdef HAVE_POSIX_ACLS
+static int map_acl_posix_to_darwin(int type, const acl_t acl, darwin_ace_t *darwin_aces)
+{
+ int mapped_aces = 0;
+ int havemask = 0;
+ int entry_id = ACL_FIRST_ENTRY;
+ acl_entry_t e;
+ acl_tag_t tag;
+ acl_permset_t permset, mask;
+ uid_t *uid = NULL;
+ gid_t *gid = NULL;
+ struct passwd *pwd = NULL;
+ struct group *grp = NULL;
+ uint32_t flags;
+ uint32_t rights;
+ darwin_ace_t *saved_darwin_aces = darwin_aces;
+
+ LOG(log_maxdebug, logtype_afpd, "map_aces_posix_to_darwin(%s)",
+ (type & MAP_MASK) == POSIX_DEFAULT_2_DARWIN ?
+ "POSIX_DEFAULT_2_DARWIN" : "POSIX_ACCESS_2_DARWIN");
+
+ /* itereate through all ACEs */
+ while (acl_get_entry(acl, entry_id, &e) == 1) {
+ entry_id = ACL_NEXT_ENTRY;
+
+ /* get ACE type */
+ if (acl_get_tag_type(e, &tag) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_posix_to_darwin: acl_get_tag_type: %s", strerror(errno));
+ mapped_aces = -1;
+ goto exit;
+ }
+
+ /* we return user and group ACE */
+ switch (tag) {
+ case ACL_USER:
+ if ((uid = (uid_t *)acl_get_qualifier(e)) == NULL) {
+ LOG(log_error, logtype_afpd, "map_aces_posix_to_darwin: acl_get_qualifier: %s",
+ strerror(errno));
+ mapped_aces = -1;
+ goto exit;
+ }
+ if ((pwd = getpwuid(*uid)) == NULL) {
+ LOG(log_error, logtype_afpd, "map_aces_posix_to_darwin: getpwuid error: %s",
+ strerror(errno));
+ mapped_aces = -1;
+ goto exit;
+ }
+ LOG(log_debug, logtype_afpd, "map_aces_posix_to_darwin: uid: %d -> name: %s",
+ *uid, pwd->pw_name);
+ if (getuuidfromname(pwd->pw_name, UUID_USER, darwin_aces->darwin_ace_uuid) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_posix_to_darwin: getuuidfromname error");
+ mapped_aces = -1;
+ goto exit;
+ }
+ acl_free(uid);
+ uid = NULL;
+ break;
+
+ case ACL_GROUP:
+ if ((gid = (gid_t *)acl_get_qualifier(e)) == NULL) {
+ LOG(log_error, logtype_afpd, "map_aces_posix_to_darwin: acl_get_qualifier: %s",
+ strerror(errno));
+ mapped_aces = -1;
+ goto exit;
+ }
+ if ((grp = getgrgid(*gid)) == NULL) {
+ LOG(log_error, logtype_afpd, "map_aces_posix_to_darwin: getgrgid error: %s",
+ strerror(errno));
+ mapped_aces = -1;
+ goto exit;
+ }
+ LOG(log_debug, logtype_afpd, "map_aces_posix_to_darwin: gid: %d -> name: %s",
+ *gid, grp->gr_name);
+ if (getuuidfromname(grp->gr_name, UUID_GROUP, darwin_aces->darwin_ace_uuid) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: getuuidfromname error");
+ mapped_aces = -1;
+ goto exit;
+ }
+ acl_free(gid);
+ gid = NULL;
+ break;
+
+ /* store mask so we can apply it later in a second loop */
+ case ACL_MASK:
+ if (acl_get_permset(e, &mask) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: acl_get_permset: %s", strerror(errno));
+ return -1;
+ }
+ havemask = 1;
+ continue;
+
+ default:
+ continue;
+ }
+
+ /* flags */
+ flags = DARWIN_ACE_FLAGS_PERMIT;
+ if ((type & MAP_MASK) == POSIX_DEFAULT_2_DARWIN)
+ flags |= DARWIN_ACE_FLAGS_FILE_INHERIT
+ | DARWIN_ACE_FLAGS_DIRECTORY_INHERIT
+ | DARWIN_ACE_FLAGS_ONLY_INHERIT;
+ darwin_aces->darwin_ace_flags = htonl(flags);
+
+ /* rights */
+ if (acl_get_permset(e, &permset) != 0) {
+ LOG(log_error, logtype_afpd, "map_aces_solaris_to_darwin: acl_get_permset: %s", strerror(errno));
+ return -1;
+ }
+
+ rights = 0;
+ if (acl_get_perm(permset, ACL_READ))
+ rights = DARWIN_ACE_READ_DATA
+ | DARWIN_ACE_READ_EXTATTRIBUTES
+ | DARWIN_ACE_READ_ATTRIBUTES
+ | DARWIN_ACE_READ_SECURITY;
+ if (acl_get_perm(permset, ACL_WRITE)) {
+ rights |= DARWIN_ACE_WRITE_DATA
+ | DARWIN_ACE_APPEND_DATA
+ | DARWIN_ACE_WRITE_EXTATTRIBUTES
+ | DARWIN_ACE_WRITE_ATTRIBUTES;
+ if ((type & ~MAP_MASK) == IS_DIR)
+ rights |= DARWIN_ACE_DELETE;
+ }
+ if (acl_get_perm(permset, ACL_EXECUTE))
+ rights |= DARWIN_ACE_EXECUTE;
+
+ darwin_aces->darwin_ace_rights = htonl(rights);
+
+ darwin_aces++;
+ mapped_aces++;
+ } /* while */
+
+ if (havemask) {
+ /* Loop through the mapped ACE buffer once again, applying the mask */
+ /* Map the mask to Darwin ACE rights first */
+ rights = 0;
+ if (acl_get_perm(mask, ACL_READ))
+ rights = DARWIN_ACE_READ_DATA
+ | DARWIN_ACE_READ_EXTATTRIBUTES
+ | DARWIN_ACE_READ_ATTRIBUTES
+ | DARWIN_ACE_READ_SECURITY;
+ if (acl_get_perm(mask, ACL_WRITE)) {
+ rights |= DARWIN_ACE_WRITE_DATA
+ | DARWIN_ACE_APPEND_DATA
+ | DARWIN_ACE_WRITE_EXTATTRIBUTES
+ | DARWIN_ACE_WRITE_ATTRIBUTES;
+ if ((type & ~MAP_MASK) == IS_DIR)
+ rights |= DARWIN_ACE_DELETE;
+ }
+ if (acl_get_perm(mask, ACL_EXECUTE))
+ rights |= DARWIN_ACE_EXECUTE;
+ for (int i = mapped_aces; i > 0; i--) {
+ saved_darwin_aces->darwin_ace_rights &= htonl(rights);
+ saved_darwin_aces++;
+ }
+ }
+
+exit:
+ if (uid) acl_free(uid);
+ if (gid) acl_free(gid);
+
+ return mapped_aces;
+}
+#endif
-/* Map between ACL styles (SOLARIS_2_DARWIN, DARWIN_2_SOLARIS).
- Reads from 'aces' buffer, writes to 'rbuf' buffer.
- Caller must provide buffer.
- Darwin ACEs are read and written in network byte order.
- Needs to know how many ACEs are in the ACL (ace_count). Ignores trivial ACEs.
- Return no of mapped ACEs or -1 on error. */
-static int map_acl(int type, ace_t *nfsv4_aces, darwin_ace_t *buf, int ace_count)
+/*
+ * Multiplex ACL mapping (SOLARIS_2_DARWIN, DARWIN_2_SOLARIS, POSIX_2_DARWIN, DARWIN_2_POSIX).
+ * Reads from 'aces' buffer, writes to 'rbuf' buffer.
+ * Caller must provide buffer.
+ * Darwin ACEs are read and written in network byte order.
+ * Needs to know how many ACEs are in the ACL (ace_count) for Solaris ACLs.
+ * Ignores trivial ACEs.
+ * Return no of mapped ACEs or -1 on error.
+ */
+static int map_acl(int type, const void *acl, darwin_ace_t *buf, int ace_count)
{
int mapped_aces;
LOG(log_debug9, logtype_afpd, "map_acl: BEGIN");
-
- switch (type) {
+
+ switch (type & MAP_MASK) {
+
+#ifdef HAVE_SOLARIS_ACLS
case SOLARIS_2_DARWIN:
- mapped_aces = map_aces_solaris_to_darwin( nfsv4_aces, buf, ace_count);
- break;
+ mapped_aces = map_aces_solaris_to_darwin( acl, buf, ace_count);
+ break;
case DARWIN_2_SOLARIS:
- mapped_aces = map_aces_darwin_to_solaris( buf, nfsv4_aces, ace_count);
- break;
+ mapped_aces = map_aces_darwin_to_solaris( buf, acl, ace_count);
+ break;
+#endif /* HAVE_SOLARIS_ACLS */
+
+#ifdef HAVE_POSIX_ACLS
+ case POSIX_DEFAULT_2_DARWIN:
+ mapped_aces = map_acl_posix_to_darwin(type, (const acl_t)acl, buf);
+ break;
+
+ case POSIX_ACCESS_2_DARWIN:
+ mapped_aces = map_acl_posix_to_darwin(type, (const acl_t)acl, buf);
+ break;
+
+ case DARWIN_2_POSIX:
+ break;
+#endif /* HAVE_POSIX_ACLS */
default:
- mapped_aces = -1;
- break;
+ mapped_aces = -1;
+ break;
}
LOG(log_debug9, logtype_afpd, "map_acl: END");
return mapped_aces;
}
-/********************************************************
- * 1st level funcs
- ********************************************************/
-
-
-/* Get ACL from object omitting trivial ACEs. Map to Darwin ACL style and
+/* Get ACL from object omitting trivial ACEs. Map to Darwin ACL style and
store Darwin ACL at rbuf. Add length of ACL written to rbuf to *rbuflen.
Returns 0 on success, -1 on error. */
static int get_and_map_acl(char *name, char *rbuf, size_t *rbuflen)
{
- int ace_count, mapped_aces, err;
- ace_t *aces;
+ int ace_count = 0;
+ int mapped_aces = 0;
+ int err, dirflag;
uint32_t *darwin_ace_count = (u_int32_t *)rbuf;
-
+#ifdef HAVE_SOLARIS_ACLS
+ ace_t *aces;
+#endif
+#ifdef HAVE_POSIX_ACLS
+ struct stat st;
+#endif
LOG(log_debug9, logtype_afpd, "get_and_map_acl: BEGIN");
/* Skip length and flags */
*rbuf = 0;
rbuf += 4;
+#ifdef HAVE_SOLARIS_ACLS
if ( (ace_count = get_nfsv4_acl(name, &aces)) == -1) {
- LOG(log_error, logtype_afpd, "get_and_map_acl: couldnt get ACL");
- return -1;
+ LOG(log_error, logtype_afpd, "get_and_map_acl: couldnt get ACL");
+ return -1;
}
if ( (mapped_aces = map_acl(SOLARIS_2_DARWIN, aces, (darwin_ace_t *)rbuf, ace_count)) == -1) {
- err = -1;
- goto cleanup;
+ err = -1;
+ goto cleanup;
+ }
+#endif /* HAVE_SOLARIS_ACLS */
+
+#ifdef HAVE_POSIX_ACLS
+ acl_t defacl = NULL , accacl = NULL;
+
+ /* stat to check if its a dir */
+ if (stat(name, &st) != 0) {
+ LOG(log_error, logtype_afpd, "get_and_map_acl: stat: %s", strerror(errno));
+ err = -1;
+ goto cleanup;
+ }
+
+ /* if its a dir, check for default acl too */
+ dirflag = 0;
+ if (S_ISDIR(st.st_mode)) {
+ dirflag = IS_DIR;
+ if ((defacl = acl_get_file(name, ACL_TYPE_DEFAULT)) == NULL) {
+ LOG(log_error, logtype_afpd, "get_and_map_acl: couldnt get default ACL"); err = -1; goto cleanup;
+ }
+ if (defacl && (mapped_aces = map_acl(POSIX_DEFAULT_2_DARWIN | dirflag,
+ defacl,
+ (darwin_ace_t *)rbuf,
+ 0)) == -1) {
+ err = -1; goto cleanup;
+ }
+ }
+
+ if ((accacl = acl_get_file(name, ACL_TYPE_ACCESS)) == NULL) {
+ LOG(log_error, logtype_afpd, "get_and_map_acl: couldnt get access ACL"); err = -1; goto cleanup;
}
+
+ if (accacl && (mapped_aces += map_acl(POSIX_ACCESS_2_DARWIN | dirflag,
+ accacl,
+ (darwin_ace_t *)(rbuf + mapped_aces * sizeof(darwin_ace_t)),
+ 0)) == -1) {
+ err = -1; goto cleanup;
+ }
+#endif /* HAVE_POSIX_ACLS */
+
LOG(log_debug, logtype_afpd, "get_and_map_acl: mapped %d ACEs", mapped_aces);
err = 0;
*darwin_ace_count = htonl(mapped_aces);
*rbuflen += sizeof(darwin_acl_header_t) + (mapped_aces * sizeof(darwin_ace_t));
-cleanup:
+cleanup:
+#ifdef HAVE_SOLARIS_ACLS
free(aces);
+#endif
+#ifdef HAVE_POSIX_ACLS
+ if (defacl) acl_free(defacl);
+ if (accacl) acl_free(accacl);
+#endif /* HAVE_POSIX_ACLS */
- LOG(log_debug9, logtype_afpd, "get_and_map_acl: END");
+ LOG(log_debug9, logtype_afpd, "get_and_map_acl: END");
return err;
}
/* Removes all non-trivial ACLs from object. Returns full AFPERR code. */
-static int remove_acl_vfs(const struct vol *vol,const char *path, int dir)
+static int remove_acl(const struct vol *vol,const char *path, int dir)
{
int ret;
/* Ressource etc. first */
if ((ret = vol->vfs->vfs_remove_acl(vol, path, dir)) != AFP_OK)
- return ret;
+ return ret;
/* now the data fork or dir */
- return (remove_acl(path));
+ return (remove_acl_vfs(path));
}
-/*
- Set ACL. Subtleties:
- - the client sends a complete list of ACEs, not only new ones. So we dont need to do
- any combination business (one exception being 'kFileSec_Inherit': see next)
- - client might request that we add inherited ACEs via 'kFileSec_Inherit'.
- We will store inherited ACEs first, which is Darwins canonical order.
- - returns AFPerror code
+/*
+ Set ACL. Subtleties:
+ - the client sends a complete list of ACEs, not only new ones. So we dont need to do
+ any combination business (one exception being 'kFileSec_Inherit': see next)
+ - client might request that we add inherited ACEs via 'kFileSec_Inherit'.
+ We will store inherited ACEs first, which is Darwins canonical order.
+ - returns AFPerror code
*/
-static int set_acl_vfs(const struct vol *vol, char *name, int inherit, char *ibuf)
+#ifdef HAVE_SOLARIS_ACLS
+static int set_acl(const struct vol *vol, char *name, int inherit, char *ibuf)
{
int ret, i, nfsv4_ace_count, tocopy_aces_count = 0, new_aces_count = 0, trivial_ace_count = 0;
ace_t *old_aces, *new_aces = NULL;
/* Get no of ACEs the client put on the wire */
ace_count = htonl(*((uint32_t *)ibuf));
- ibuf += 8; /* skip ACL flags (see acls.h) */
+ ibuf += 8; /* skip ACL flags (see acls.h) */
if (inherit)
- /* inherited + trivial ACEs */
- flags = ACE_INHERITED_ACE | ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
+ /* inherited + trivial ACEs */
+ flags = ACE_INHERITED_ACE | ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
else
- /* only trivial ACEs */
- flags = ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
+ /* only trivial ACEs */
+ flags = ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
/* Get existing ACL and count ACEs which have to be copied */
if ((nfsv4_ace_count = get_nfsv4_acl(name, &old_aces)) == -1)
- return AFPERR_MISC;
+ return AFPERR_MISC;
for ( i=0; i < nfsv4_ace_count; i++) {
- if (old_aces[i].a_flags & flags)
- tocopy_aces_count++;
+ if (old_aces[i].a_flags & flags)
+ tocopy_aces_count++;
}
/* Now malloc buffer exactly sized to fit all new ACEs */
new_aces = malloc( (ace_count + tocopy_aces_count) * sizeof(ace_t) );
if (new_aces == NULL) {
- LOG(log_error, logtype_afpd, "set_acl: malloc %s", strerror(errno));
- ret = AFPERR_MISC;
- goto cleanup;
+ LOG(log_error, logtype_afpd, "set_acl: malloc %s", strerror(errno));
+ ret = AFPERR_MISC;
+ goto cleanup;
}
/* Start building new ACL */
/* Copy local inherited ACEs. Therefore we have 'Darwin canonical order' (see chmod there):
inherited ACEs first. */
if (inherit) {
- for (i=0; i < nfsv4_ace_count; i++) {
- if (old_aces[i].a_flags & ACE_INHERITED_ACE) {
- memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
- new_aces_count++;
- }
- }
+ for (i=0; i < nfsv4_ace_count; i++) {
+ if (old_aces[i].a_flags & ACE_INHERITED_ACE) {
+ memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
+ new_aces_count++;
+ }
+ }
}
LOG(log_debug7, logtype_afpd, "set_acl: copied %d inherited ACEs", new_aces_count);
/* Now the ACEs from the client */
ret = map_acl(DARWIN_2_SOLARIS, &new_aces[new_aces_count], (darwin_ace_t *)ibuf, ace_count);
if (ret == -1) {
- ret = AFPERR_PARAM;
- goto cleanup;
+ ret = AFPERR_PARAM;
+ goto cleanup;
}
new_aces_count += ace_count;
LOG(log_debug7, logtype_afpd, "set_acl: mapped %d ACEs from client", ace_count);
/* Now copy the trivial ACEs */
for (i=0; i < nfsv4_ace_count; i++) {
- if (old_aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
- memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
- new_aces_count++;
- trivial_ace_count++;
- }
+ if (old_aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
+ memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
+ new_aces_count++;
+ trivial_ace_count++;
+ }
}
LOG(log_debug7, logtype_afpd, "set_acl: copied %d trivial ACEs", trivial_ace_count);
Note: for dirs we set the same ACL on the .AppleDouble/.Parent _file_. This
might be strange for ACE_DELETE_CHILD and for inheritance flags. */
if ( (ret = vol->vfs->vfs_acl(vol, name, ACE_SETACL, new_aces_count, new_aces)) != 0) {
- LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
- if (errno == (EACCES | EPERM))
- ret = AFPERR_ACCESS;
- else if (errno == ENOENT)
- ret = AFPERR_NOITEM;
- else
- ret = AFPERR_MISC;
- goto cleanup;
+ LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
+ if (errno == (EACCES | EPERM))
+ ret = AFPERR_ACCESS;
+ else if (errno == ENOENT)
+ ret = AFPERR_NOITEM;
+ else
+ ret = AFPERR_MISC;
+ goto cleanup;
}
if ( (ret = acl(name, ACE_SETACL, new_aces_count, new_aces)) != 0) {
- LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
- if (errno == (EACCES | EPERM))
- ret = AFPERR_ACCESS;
- else if (errno == ENOENT)
- ret = AFPERR_NOITEM;
- else
- ret = AFPERR_MISC;
- goto cleanup;
+ LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
+ if (errno == (EACCES | EPERM))
+ ret = AFPERR_ACCESS;
+ else if (errno == ENOENT)
+ ret = AFPERR_NOITEM;
+ else
+ ret = AFPERR_MISC;
+ goto cleanup;
}
ret = AFP_OK;
LOG(log_debug9, logtype_afpd, "set_acl: END");
return ret;
}
+#endif /* HAVE_SOLARIS_ACLS */
-/*
- Checks if a given UUID has requested_rights(type darwin_ace_rights) for path.
- Note: this gets called frequently and is a good place for optimizations !
- */
+#ifdef HAVE_POSIX_ACLS
+static int set_acl(const struct vol *vol, char *name, int inherit, char *ibuf)
+{
+ return AFP_OK;
+}
+#endif /* HAVE_POSIX_ACLS */
+
+/*
+ Checks if a given UUID has requested_rights(type darwin_ace_rights) for path.
+ Note: this gets called frequently and is a good place for optimizations !
+*/
+#ifdef HAVE_SOLARIS_ACLS
static int check_acl_access(const char *path, const uuidp_t uuid, uint32_t requested_darwin_rights)
{
int ret, i, ace_count, dir, checkgroup;
#endif
/* Get uid or gid from UUID */
if ( (getnamefromuuid(uuid, &username, &uuidtype)) != 0) {
- LOG(log_error, logtype_afpd, "check_access: error getting name from UUID");
- return AFPERR_PARAM;
+ LOG(log_error, logtype_afpd, "check_access: error getting name from UUID");
+ return AFPERR_PARAM;
}
/* File or dir */
- if ((stat(path, &st)) != 0) {
- LOG(log_error, logtype_afpd, "check_access: stat: %s", strerror(errno));
- ret = AFPERR_PARAM;
- goto exit;
+ if ((lstat(path, &st)) != 0) {
+ LOG(log_error, logtype_afpd, "check_access: stat: %s", strerror(errno));
+ ret = AFPERR_PARAM;
+ goto exit;
}
dir = S_ISDIR(st.st_mode);
if (uuidtype == UUID_USER) {
- pwd = getpwnam(username);
- if (!pwd) {
- LOG(log_error, logtype_afpd, "check_access: getpwnam: %s", strerror(errno));
- ret = AFPERR_MISC;
- goto exit;
- }
- uid = pwd->pw_uid;
- pgid = pwd->pw_gid;
-
- /* If user is file/dir owner we must check the user trivial ACE */
- if (uid == st.st_uid) {
- LOG(log_debug, logtype_afpd, "check_access: user: %s is files owner. Must check trivial user ACE", username);
- check_user_trivace = 1;
- }
-
- /* Now check if requested user is files owning group. If yes we must check the group trivial ACE */
- if ( (check_group(username, uid, pgid, st.st_gid)) == 0) {
- LOG(log_debug, logtype_afpd, "check_access: user: %s is in group: %d. Must check trivial group ACE", username, st.st_gid);
- check_group_trivace = 1;
- }
+ pwd = getpwnam(username);
+ if (!pwd) {
+ LOG(log_error, logtype_afpd, "check_access: getpwnam: %s", strerror(errno));
+ ret = AFPERR_MISC;
+ goto exit;
+ }
+ uid = pwd->pw_uid;
+ pgid = pwd->pw_gid;
+
+ /* If user is file/dir owner we must check the user trivial ACE */
+ if (uid == st.st_uid) {
+ LOG(log_debug, logtype_afpd, "check_access: user: %s is files owner. Must check trivial user ACE", username);
+ check_user_trivace = 1;
+ }
+
+ /* Now check if requested user is files owning group. If yes we must check the group trivial ACE */
+ if ( (check_group(username, uid, pgid, st.st_gid)) == 0) {
+ LOG(log_debug, logtype_afpd, "check_access: user: %s is in group: %d. Must check trivial group ACE", username, st.st_gid);
+ check_group_trivace = 1;
+ }
} else { /* hopefully UUID_GROUP*/
- LOG(log_error, logtype_afpd, "check_access: afp_access for UUID of groups not supported!");
+ LOG(log_error, logtype_afpd, "check_access: afp_access for UUID of groups not supported!");
#if 0
- grp = getgrnam(username);
- if (!grp) {
- LOG(log_error, logtype_afpd, "check_access: getgrnam: %s", strerror(errno));
- return -1;
- }
- if (st.st_gid == grp->gr_gid )
- check_group_trivace = 1;
+ grp = getgrnam(username);
+ if (!grp) {
+ LOG(log_error, logtype_afpd, "check_access: getgrnam: %s", strerror(errno));
+ return -1;
+ }
+ if (st.st_gid == grp->gr_gid )
+ check_group_trivace = 1;
#endif
}
/* Map requested rights to Solaris style. */
for (i=0; darwin_to_nfsv4_rights[i].from != 0; i++) {
- if (requested_darwin_rights & darwin_to_nfsv4_rights[i].from)
- requested_rights |= darwin_to_nfsv4_rights[i].to;
+ if (requested_darwin_rights & darwin_to_nfsv4_rights[i].from)
+ requested_rights |= darwin_to_nfsv4_rights[i].to;
}
/* Get ACL from file/dir */
if ( (ace_count = get_nfsv4_acl(path, &aces)) == -1) {
- LOG(log_error, logtype_afpd, "check_access: error getting ACEs");
- ret = AFPERR_MISC;
- goto exit;
+ LOG(log_error, logtype_afpd, "check_access: error getting ACEs");
+ ret = AFPERR_MISC;
+ goto exit;
}
/* Now check requested rights */
ret = AFPERR_ACCESS;
i = 0;
do { /* Loop through ACEs */
- who = aces[i].a_who;
- flags = aces[i].a_flags;
- type = aces[i].a_type;
- rights = aces[i].a_access_mask;
-
- if (flags & ACE_INHERIT_ONLY_ACE)
- continue;
-
- /* Check if its a group ACE and set checkgroup to 1 if yes */
- checkgroup = 0;
- if ( (flags & ACE_IDENTIFIER_GROUP) && !(flags & ACE_GROUP) ) {
- if ( (check_group(username, uid, pgid, who)) == 0)
- checkgroup = 1;
- else
- continue;
- }
-
- /* Now the tricky part: decide if ACE effects our user. I'll explain:
- if its a dedicated (non trivial) ACE for the user
- OR
- if its a ACE for a group we're member of
- OR
- if its a trivial ACE_OWNER ACE and requested UUID is the owner
- OR
- if its a trivial ACE_GROUP ACE and requested UUID is group
- OR
- if its a trivial ACE_EVERYONE ACE
- THEN
- process ACE */
- if (
- ( (who == uid) && !(flags & (ACE_TRIVIAL|ACE_IDENTIFIER_GROUP)) ) ||
- (checkgroup) ||
- ( (flags & ACE_OWNER) && check_user_trivace ) ||
- ( (flags & ACE_GROUP) && check_group_trivace ) ||
- ( flags & ACE_EVERYONE )
- ) {
- /* Found an applicable ACE */
- if (type == ACE_ACCESS_ALLOWED_ACE_TYPE)
- allowed_rights |= rights;
- else if (type == ACE_ACCESS_DENIED_ACE_TYPE)
- /* Only or to denied rights if not previously allowed !! */
- denied_rights |= ((!allowed_rights) & rights);
- }
+ who = aces[i].a_who;
+ flags = aces[i].a_flags;
+ type = aces[i].a_type;
+ rights = aces[i].a_access_mask;
+
+ if (flags & ACE_INHERIT_ONLY_ACE)
+ continue;
+
+ /* Check if its a group ACE and set checkgroup to 1 if yes */
+ checkgroup = 0;
+ if ( (flags & ACE_IDENTIFIER_GROUP) && !(flags & ACE_GROUP) ) {
+ if ( (check_group(username, uid, pgid, who)) == 0)
+ checkgroup = 1;
+ else
+ continue;
+ }
+
+ /* Now the tricky part: decide if ACE effects our user. I'll explain:
+ if its a dedicated (non trivial) ACE for the user
+ OR
+ if its a ACE for a group we're member of
+ OR
+ if its a trivial ACE_OWNER ACE and requested UUID is the owner
+ OR
+ if its a trivial ACE_GROUP ACE and requested UUID is group
+ OR
+ if its a trivial ACE_EVERYONE ACE
+ THEN
+ process ACE */
+ if (
+ ( (who == uid) && !(flags & (ACE_TRIVIAL|ACE_IDENTIFIER_GROUP)) ) ||
+ (checkgroup) ||
+ ( (flags & ACE_OWNER) && check_user_trivace ) ||
+ ( (flags & ACE_GROUP) && check_group_trivace ) ||
+ ( flags & ACE_EVERYONE )
+ ) {
+ /* Found an applicable ACE */
+ if (type == ACE_ACCESS_ALLOWED_ACE_TYPE)
+ allowed_rights |= rights;
+ else if (type == ACE_ACCESS_DENIED_ACE_TYPE)
+ /* Only or to denied rights if not previously allowed !! */
+ denied_rights |= ((!allowed_rights) & rights);
+ }
} while (++i < ace_count);
/* Darwin likes to ask for "delete_child" on dir,
"write_data" is actually the same, so we add that for dirs */
if (dir && (allowed_rights & ACE_WRITE_DATA))
- allowed_rights |= ACE_DELETE_CHILD;
+ allowed_rights |= ACE_DELETE_CHILD;
if (requested_rights & denied_rights) {
- LOG(log_debug, logtype_afpd, "check_access: some requested right was denied:");
- ret = AFPERR_ACCESS;
+ LOG(log_debug, logtype_afpd, "check_access: some requested right was denied:");
+ ret = AFPERR_ACCESS;
} else if ((requested_rights & allowed_rights) != requested_rights) {
- LOG(log_debug, logtype_afpd, "check_access: some requested right wasn't allowed:");
- ret = AFPERR_ACCESS;
+ LOG(log_debug, logtype_afpd, "check_access: some requested right wasn't allowed:");
+ ret = AFPERR_ACCESS;
} else {
- LOG(log_debug, logtype_afpd, "check_access: all requested rights are allowed:");
- ret = AFP_OK;
+ LOG(log_debug, logtype_afpd, "check_access: all requested rights are allowed:");
+ ret = AFP_OK;
}
LOG(log_debug, logtype_afpd, "check_access: Requested rights: %08x, allowed_rights: %08x, denied_rights: %08x, Result: %d",
- requested_rights, allowed_rights, denied_rights, ret);
+ requested_rights, allowed_rights, denied_rights, ret);
exit:
free(aces);
#endif
return ret;
}
+#endif /* HAVE_SOLARIS_ACLS */
-/********************************************************
+#ifdef HAVE_POSIX_ACLS
+static int check_acl_access(const char *path, const uuidp_t uuid, uint32_t requested_darwin_rights)
+{
+ /*
+ * FIXME: for OS X >= 10.6 it seems fp_access isn't called anymore, instead
+ * the client just tries to perform any action, relying on the server
+ * to enforce permission (which the OS does for us), returning appropiate
+ * error codes in case the action failed.
+ * So to summarize: I think it's safe to not implement this function and
+ * just always return AFP_OK.
+ */
+ return AFP_OK;
+}
+#endif /* HAVE_POSIX_ACLS */
+
+/********************************************************
* Interface
********************************************************/
int afp_access(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
- int ret;
- struct vol *vol;
- struct dir *dir;
+ int ret;
+ struct vol *vol;
+ struct dir *dir;
uint32_t did, darwin_ace_rights;
- uint16_t vid;
+ uint16_t vid;
struct path *s_path;
uuidp_t uuid;
memcpy(&vid, ibuf, sizeof( vid ));
ibuf += sizeof(vid);
if (NULL == ( vol = getvolbyvid( vid ))) {
- LOG(log_error, logtype_afpd, "afp_access: error getting volid:%d", vid);
+ LOG(log_error, logtype_afpd, "afp_access: error getting volid:%d", vid);
return AFPERR_NOOBJ;
}
memcpy(&did, ibuf, sizeof( did ));
ibuf += sizeof( did );
if (NULL == ( dir = dirlookup( vol, did ))) {
- LOG(log_error, logtype_afpd, "afp_access: error getting did:%d", did);
- return afp_errno;
+ LOG(log_error, logtype_afpd, "afp_access: error getting did:%d", did);
+ return afp_errno;
}
/* Skip bitmap */
/* Store ACE rights */
memcpy(&darwin_ace_rights, ibuf, 4);
- darwin_ace_rights = ntohl(darwin_ace_rights);
+ darwin_ace_rights = ntohl(darwin_ace_rights);
ibuf += 4;
/* get full path and handle file/dir subtleties in netatalk code*/
if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
- LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
- return AFPERR_NOOBJ;
+ LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
+ return AFPERR_NOOBJ;
}
if (!s_path->st_valid)
of_statdir(vol, s_path);
if ( s_path->st_errno != 0 ) {
- LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
+ LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
return AFPERR_NOOBJ;
}
int afp_getacl(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
- struct vol *vol;
- struct dir *dir;
- int ret;
+ struct vol *vol;
+ struct dir *dir;
+ int ret;
uint32_t did;
- uint16_t vid, bitmap;
+ uint16_t vid, bitmap;
struct path *s_path;
struct passwd *pw;
struct group *gr;
memcpy(&vid, ibuf, sizeof( vid ));
ibuf += sizeof(vid);
if (NULL == ( vol = getvolbyvid( vid ))) {
- LOG(log_error, logtype_afpd, "afp_getacl: error getting volid:%d", vid);
+ LOG(log_error, logtype_afpd, "afp_getacl: error getting volid:%d", vid);
return AFPERR_NOOBJ;
}
memcpy(&did, ibuf, sizeof( did ));
ibuf += sizeof( did );
if (NULL == ( dir = dirlookup( vol, did ))) {
- LOG(log_error, logtype_afpd, "afp_getacl: error getting did:%d", did);
- return afp_errno;
+ LOG(log_error, logtype_afpd, "afp_getacl: error getting did:%d", did);
+ return afp_errno;
}
memcpy(&bitmap, ibuf, sizeof( bitmap ));
- memcpy(rbuf, ibuf, sizeof( bitmap ));
+ memcpy(rbuf, ibuf, sizeof( bitmap ));
bitmap = ntohs( bitmap );
ibuf += sizeof( bitmap );
rbuf += sizeof( bitmap );
/* get full path and handle file/dir subtleties in netatalk code*/
if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
- LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
- return AFPERR_NOOBJ;
+ LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
+ return AFPERR_NOOBJ;
}
if (!s_path->st_valid)
of_statdir(vol, s_path);
if ( s_path->st_errno != 0 ) {
- LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
+ LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
return AFPERR_NOOBJ;
}
/* Shall we return owner UUID ? */
if (bitmap & kFileSec_UUID) {
- LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner user UUID");
- if (NULL == (pw = getpwuid(s_path->st.st_uid)))
- return AFPERR_MISC;
- LOG(log_debug, logtype_afpd, "afp_getacl: got uid: %d, name: %s", s_path->st.st_uid, pw->pw_name);
- if ((ret = getuuidfromname(pw->pw_name, UUID_USER, rbuf)) != 0)
- return AFPERR_MISC;
- rbuf += UUID_BINSIZE;
- *rbuflen += UUID_BINSIZE;
- }
+ LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner user UUID");
+ if (NULL == (pw = getpwuid(s_path->st.st_uid)))
+ return AFPERR_MISC;
+ LOG(log_debug, logtype_afpd, "afp_getacl: got uid: %d, name: %s", s_path->st.st_uid, pw->pw_name);
+ if ((ret = getuuidfromname(pw->pw_name, UUID_USER, rbuf)) != 0)
+ return AFPERR_MISC;
+ rbuf += UUID_BINSIZE;
+ *rbuflen += UUID_BINSIZE;
+ }
/* Shall we return group UUID ? */
if (bitmap & kFileSec_GRPUUID) {
- LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner group UUID");
- if (NULL == (gr = getgrgid(s_path->st.st_gid)))
- return AFPERR_MISC;
- LOG(log_debug, logtype_afpd, "afp_getacl: got gid: %d, name: %s", s_path->st.st_gid, gr->gr_name);
- if ((ret = getuuidfromname(gr->gr_name, UUID_GROUP, rbuf)) != 0)
- return AFPERR_MISC;
- rbuf += UUID_BINSIZE;
- *rbuflen += UUID_BINSIZE;
- }
+ LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner group UUID");
+ if (NULL == (gr = getgrgid(s_path->st.st_gid)))
+ return AFPERR_MISC;
+ LOG(log_debug, logtype_afpd, "afp_getacl: got gid: %d, name: %s", s_path->st.st_gid, gr->gr_name);
+ if ((ret = getuuidfromname(gr->gr_name, UUID_GROUP, rbuf)) != 0)
+ return AFPERR_MISC;
+ rbuf += UUID_BINSIZE;
+ *rbuflen += UUID_BINSIZE;
+ }
/* Shall we return ACL ? */
- if (bitmap & kFileSec_ACL) {
- LOG(log_debug, logtype_afpd, "afp_getacl: client requested files ACL");
- get_and_map_acl(s_path->u_name, rbuf, rbuflen);
+ if (bitmap & kFileSec_ACL) {
+ LOG(log_debug, logtype_afpd, "afp_getacl: client requested files ACL");
+ get_and_map_acl(s_path->u_name, rbuf, rbuflen);
}
LOG(log_debug9, logtype_afpd, "afp_getacl: END");
int afp_setacl(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
- struct vol *vol;
- struct dir *dir;
- int ret;
+ struct vol *vol;
+ struct dir *dir;
+ int ret;
uint32_t did;
- uint16_t vid, bitmap;
+ uint16_t vid, bitmap;
struct path *s_path;
LOG(log_debug9, logtype_afpd, "afp_setacl: BEGIN");
memcpy(&vid, ibuf, sizeof( vid ));
ibuf += sizeof(vid);
if (NULL == ( vol = getvolbyvid( vid ))) {
- LOG(log_error, logtype_afpd, "afp_setacl: error getting volid:%d", vid);
+ LOG(log_error, logtype_afpd, "afp_setacl: error getting volid:%d", vid);
return AFPERR_NOOBJ;
}
memcpy(&did, ibuf, sizeof( did ));
ibuf += sizeof( did );
if (NULL == ( dir = dirlookup( vol, did ))) {
- LOG(log_error, logtype_afpd, "afp_setacl: error getting did:%d", did);
- return afp_errno;
+ LOG(log_error, logtype_afpd, "afp_setacl: error getting did:%d", did);
+ return afp_errno;
}
memcpy(&bitmap, ibuf, sizeof( bitmap ));
/* get full path and handle file/dir subtleties in netatalk code*/
if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
- LOG(log_error, logtype_afpd, "afp_setacl: cname got an error!");
- return AFPERR_NOOBJ;
+ LOG(log_error, logtype_afpd, "afp_setacl: cname got an error!");
+ return AFPERR_NOOBJ;
}
if (!s_path->st_valid)
of_statdir(vol, s_path);
if ( s_path->st_errno != 0 ) {
- LOG(log_error, logtype_afpd, "afp_setacl: cant stat");
+ LOG(log_error, logtype_afpd, "afp_setacl: cant stat");
return AFPERR_NOOBJ;
}
LOG(log_debug, logtype_afpd, "afp_setacl: unixname: %s", s_path->u_name);
/* Padding? */
if ((unsigned long)ibuf & 1)
- ibuf++;
+ ibuf++;
/* Start processing request */
/* Change owner: dont even try */
if (bitmap & kFileSec_UUID) {
- LOG(log_debug, logtype_afpd, "afp_setacl: change owner request. discarded.");
- ret = AFPERR_ACCESS;
- ibuf += UUID_BINSIZE;
+ LOG(log_debug, logtype_afpd, "afp_setacl: change owner request. discarded.");
+ ret = AFPERR_ACCESS;
+ ibuf += UUID_BINSIZE;
}
/* Change group: certain changes might be allowed, so try it. FIXME: not implemented yet. */
if (bitmap & kFileSec_UUID) {
- LOG(log_debug, logtype_afpd, "afp_setacl: change group request. not supported this time.");
- ret = AFPERR_PARAM;
- ibuf += UUID_BINSIZE;
+ LOG(log_debug, logtype_afpd, "afp_setacl: change group request. not supported this time.");
+ ret = AFPERR_PARAM;
+ ibuf += UUID_BINSIZE;
}
/* Remove ACL ? */
if (bitmap & kFileSec_REMOVEACL) {
- LOG(log_debug, logtype_afpd, "afp_setacl: Remove ACL request.");
- if ((ret = remove_acl_vfs(vol, s_path->u_name, S_ISDIR(s_path->st.st_mode))) != AFP_OK)
- LOG(log_error, logtype_afpd, "afp_setacl: error from remove_acl");
+ LOG(log_debug, logtype_afpd, "afp_setacl: Remove ACL request.");
+ if ((ret = remove_acl(vol, s_path->u_name, S_ISDIR(s_path->st.st_mode))) != AFP_OK)
+ LOG(log_error, logtype_afpd, "afp_setacl: error from remove_acl");
}
/* Change ACL ? */
if (bitmap & kFileSec_ACL) {
- LOG(log_debug, logtype_afpd, "afp_setacl: Change ACL request.");
-
- /* Check if its our job to preserve inherited ACEs */
- if (bitmap & kFileSec_Inherit)
- ret = set_acl_vfs(vol, s_path->u_name, 1, ibuf);
- else
- ret = set_acl_vfs(vol, s_path->u_name, 0, ibuf);
- if (ret == 0)
- ret = AFP_OK;
- else
- ret = AFPERR_MISC;
+ LOG(log_debug, logtype_afpd, "afp_setacl: Change ACL request.");
+
+ /* Check if its our job to preserve inherited ACEs */
+ if (bitmap & kFileSec_Inherit)
+ ret = set_acl(vol, s_path->u_name, 1, ibuf);
+ else
+ ret = set_acl(vol, s_path->u_name, 0, ibuf);
+ if (ret == 0)
+ ret = AFP_OK;
+ else
+ ret = AFPERR_MISC;
}
LOG(log_debug9, logtype_afpd, "afp_setacl: END");
return ret;
}
-/*
- unix.c/accessmode calls this: map ACL to OS 9 mode
- */
+/*
+ unix.c/accessmode calls this: map ACL to OS 9 mode
+*/
void acltoownermode(char *path, struct stat *st, uid_t uid, struct maccess *ma)
{
struct passwd *pw;
- uuid_t uuid;
- int dir, r_ok, w_ok, x_ok;
+ atalk_uuid_t uuid;
+ int r_ok, w_ok, x_ok;
+
+ if ( ! (AFPobj->options.flags & OPTION_UUID) || ! (AFPobj->options.flags & OPTION_ACL2OS9MODE))
+ return;
+
+ LOG(log_maxdebug, logtype_afpd, "acltoownermode('%s')", path);
if ((pw = getpwuid(uid)) == NULL) {
- LOG(log_error, logtype_afpd, "acltoownermode: %s", strerror(errno));
- return;
+ LOG(log_error, logtype_afpd, "acltoownermode: %s", strerror(errno));
+ return;
}
/* We need the UUID for check_acl_access */
if ((getuuidfromname(pw->pw_name, UUID_USER, uuid)) != 0)
- return;
+ return;
/* These work for files and dirs */
r_ok = check_acl_access(path, uuid, DARWIN_ACE_READ_DATA);
LOG(log_debug7, logtype_afpd, "acltoownermode: ma_user before: %04o",ma->ma_user);
if (r_ok == 0)
- ma->ma_user |= AR_UREAD;
+ ma->ma_user |= AR_UREAD;
if (w_ok == 0)
- ma->ma_user |= AR_UWRITE;
+ ma->ma_user |= AR_UWRITE;
if (x_ok == 0)
- ma->ma_user |= AR_USEARCH;
+ ma->ma_user |= AR_USEARCH;
LOG(log_debug7, logtype_afpd, "acltoownermode: ma_user after: %04o", ma->ma_user);
return;
}
-/*
- We're being called at the end of afp_createdir. We're (hopefully) inside dir
- and ".AppleDouble" and ".AppleDouble/.Parent" should have already been created.
- We then inherit any explicit ACE from "." to ".AppleDouble" and ".AppleDouble/.Parent".
- FIXME: add to VFS layer ?
- */
+/*
+ We're being called at the end of afp_createdir. We're (hopefully) inside dir
+ and ".AppleDouble" and ".AppleDouble/.Parent" should have already been created.
+ We then inherit any explicit ACE from "." to ".AppleDouble" and ".AppleDouble/.Parent".
+ FIXME: add to VFS layer ?
+*/
+#ifdef HAVE_SOLARIS_ACLS
void addir_inherit_acl(const struct vol *vol)
{
ace_t *diraces = NULL, *adaces = NULL, *combinedaces = NULL;
/* Check if ACLs are enabled for the volume */
if (vol->v_flags & AFPVOL_ACLS) {
- if ((diracecount = get_nfsv4_acl(".", &diraces)) <= 0)
- goto cleanup;
- /* Remove any trivial ACE from "." */
- if ((diracecount = strip_trivial_aces(&diraces, diracecount)) <= 0)
- goto cleanup;
+ if ((diracecount = get_nfsv4_acl(".", &diraces)) <= 0)
+ goto cleanup;
+ /* Remove any trivial ACE from "." */
+ if ((diracecount = strip_trivial_aces(&diraces, diracecount)) <= 0)
+ goto cleanup;
- /*
- Inherit to ".AppleDouble"
- */
+ /*
+ Inherit to ".AppleDouble"
+ */
- if ((adacecount = get_nfsv4_acl(".AppleDouble", &adaces)) <= 0)
- goto cleanup;
- /* Remove any non-trivial ACE from ".AppleDouble" */
- if ((adacecount = strip_nontrivial_aces(&adaces, adacecount)) <= 0)
- goto cleanup;
+ if ((adacecount = get_nfsv4_acl(".AppleDouble", &adaces)) <= 0)
+ goto cleanup;
+ /* Remove any non-trivial ACE from ".AppleDouble" */
+ if ((adacecount = strip_nontrivial_aces(&adaces, adacecount)) <= 0)
+ goto cleanup;
- /* Combine ACEs */
- if ((combinedaces = concat_aces(diraces, diracecount, adaces, adacecount)) == NULL)
- goto cleanup;
+ /* Combine ACEs */
+ if ((combinedaces = concat_aces(diraces, diracecount, adaces, adacecount)) == NULL)
+ goto cleanup;
- /* Now set new acl */
- if ((acl(".AppleDouble", ACE_SETACL, diracecount + adacecount, combinedaces)) != 0)
- LOG(log_error, logtype_afpd, "addir_inherit_acl: acl: %s", strerror(errno));
+ /* Now set new acl */
+ if ((acl(".AppleDouble", ACE_SETACL, diracecount + adacecount, combinedaces)) != 0)
+ LOG(log_error, logtype_afpd, "addir_inherit_acl: acl: %s", strerror(errno));
- free(adaces);
- adaces = NULL;
- free(combinedaces);
- combinedaces = NULL;
+ free(adaces);
+ adaces = NULL;
+ free(combinedaces);
+ combinedaces = NULL;
- /*
- Inherit to ".AppleDouble/.Parent"
- */
+ /*
+ Inherit to ".AppleDouble/.Parent"
+ */
- if ((adacecount = get_nfsv4_acl(".AppleDouble/.Parent", &adaces)) <= 0)
- goto cleanup;
- if ((adacecount = strip_nontrivial_aces(&adaces, adacecount)) <= 0)
- goto cleanup;
+ if ((adacecount = get_nfsv4_acl(".AppleDouble/.Parent", &adaces)) <= 0)
+ goto cleanup;
+ if ((adacecount = strip_nontrivial_aces(&adaces, adacecount)) <= 0)
+ goto cleanup;
- /* Combine ACEs */
- if ((combinedaces = concat_aces(diraces, diracecount, adaces, adacecount)) == NULL)
- goto cleanup;
+ /* Combine ACEs */
+ if ((combinedaces = concat_aces(diraces, diracecount, adaces, adacecount)) == NULL)
+ goto cleanup;
- /* Now set new acl */
- if ((acl(".AppleDouble/.Parent", ACE_SETACL, diracecount + adacecount, combinedaces)) != 0)
- LOG(log_error, logtype_afpd, "addir_inherit_acl: acl: %s", strerror(errno));
+ /* Now set new acl */
+ if ((acl(".AppleDouble/.Parent", ACE_SETACL, diracecount + adacecount, combinedaces)) != 0)
+ LOG(log_error, logtype_afpd, "addir_inherit_acl: acl: %s", strerror(errno));
}
free(adaces);
free(combinedaces);
}
+#endif /* HAVE_SOLARIS_ACLS */
+
+#ifdef HAVE_POSIX_ACLS
+void addir_inherit_acl(const struct vol *vol)
+{
+ return;
+}
+#endif /* HAVE_POSIX_ACLS */
projects / netatalk.git / blobdiff