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-rw-r--r--rpc/rpc-lib/src/auth-glusterfs.c6
-rw-r--r--rpc/rpc-lib/src/rpcsvc-auth.c16
-rw-r--r--rpc/rpc-lib/src/rpcsvc-common.h1
-rw-r--r--rpc/rpc-lib/src/rpcsvc.h23
-rwxr-xr-xtests/bugs/bug-887145.t85
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-set.c1
-rw-r--r--xlators/protocol/server/src/server.c9
7 files changed, 139 insertions, 2 deletions
diff --git a/rpc/rpc-lib/src/auth-glusterfs.c b/rpc/rpc-lib/src/auth-glusterfs.c
index c08871466cc..9c6f8385b2c 100644
--- a/rpc/rpc-lib/src/auth-glusterfs.c
+++ b/rpc/rpc-lib/src/auth-glusterfs.c
@@ -64,9 +64,9 @@ int auth_glusterfs_authenticate (rpcsvc_request_t *req, void *priv)
struct auth_glusterfs_parms au = {0,};
int ret = RPCSVC_AUTH_REJECT;
- int gidcount = 0;
int j = 0;
int i = 0;
+ int gidcount = 0;
if (!req)
return ret;
@@ -99,6 +99,8 @@ int auth_glusterfs_authenticate (rpcsvc_request_t *req, void *priv)
for (gidcount = 0; gidcount < au.ngrps; ++gidcount)
req->auxgids[gidcount] = au.groups[gidcount];
+ RPC_AUTH_ROOT_SQUASH(req);
+
gf_log (GF_RPCSVC, GF_LOG_TRACE, "Auth Info: pid: %u, uid: %d"
", gid: %d, owner: %s",
req->pid, req->uid, req->gid, lkowner_utoa (&req->lk_owner));
@@ -207,6 +209,8 @@ int auth_glusterfs_v2_authenticate (rpcsvc_request_t *req, void *priv)
for (i = 0; i < au.lk_owner.lk_owner_len; ++i)
req->lk_owner.data[i] = au.lk_owner.lk_owner_val[i];
+ RPC_AUTH_ROOT_SQUASH(req);
+
gf_log (GF_RPCSVC, GF_LOG_TRACE, "Auth Info: pid: %u, uid: %d"
", gid: %d, owner: %s",
req->pid, req->uid, req->gid, lkowner_utoa (&req->lk_owner));
diff --git a/rpc/rpc-lib/src/rpcsvc-auth.c b/rpc/rpc-lib/src/rpcsvc-auth.c
index 3a46cc498e5..907ae1ec9af 100644
--- a/rpc/rpc-lib/src/rpcsvc-auth.c
+++ b/rpc/rpc-lib/src/rpcsvc-auth.c
@@ -204,6 +204,21 @@ rpcsvc_set_allow_insecure (rpcsvc_t *svc, dict_t *options)
}
int
+rpcsvc_set_root_squash (rpcsvc_t *svc, dict_t *options)
+{
+ GF_ASSERT (svc);
+ GF_ASSERT (options);
+
+ if (dict_get_str_boolean (options, "root-squash", 0))
+ svc->root_squash = _gf_true;
+
+ if (svc->root_squash)
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "root squashing enabled ");
+
+ return 0;
+}
+
+int
rpcsvc_auth_init (rpcsvc_t *svc, dict_t *options)
{
int ret = -1;
@@ -212,6 +227,7 @@ rpcsvc_auth_init (rpcsvc_t *svc, dict_t *options)
return -1;
(void) rpcsvc_set_allow_insecure (svc, options);
+ (void) rpcsvc_set_root_squash (svc, options);
ret = rpcsvc_auth_add_initers (svc);
if (ret == -1) {
gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to add initers");
diff --git a/rpc/rpc-lib/src/rpcsvc-common.h b/rpc/rpc-lib/src/rpcsvc-common.h
index 81f79811612..2c6f074886d 100644
--- a/rpc/rpc-lib/src/rpcsvc-common.h
+++ b/rpc/rpc-lib/src/rpcsvc-common.h
@@ -52,6 +52,7 @@ typedef struct rpcsvc_state {
/* Allow insecure ports. */
int allow_insecure;
gf_boolean_t register_portmap;
+ gf_boolean_t root_squash;
glusterfs_ctx_t *ctx;
/* list of connections which will listen for incoming connections */
diff --git a/rpc/rpc-lib/src/rpcsvc.h b/rpc/rpc-lib/src/rpcsvc.h
index 7fdeaeb0458..1323c8b7aee 100644
--- a/rpc/rpc-lib/src/rpcsvc.h
+++ b/rpc/rpc-lib/src/rpcsvc.h
@@ -48,6 +48,10 @@
#define RPCSVC_POOLCOUNT_MULT 64
#define RPCSVC_CONN_READ (128 * GF_UNIT_KB)
#define RPCSVC_PAGE_SIZE (128 * GF_UNIT_KB)
+#define RPC_ROOT_UID 0
+#define RPC_ROOT_GID 0
+#define RPC_NOBODY_UID 65534
+#define RPC_NOBODY_GID 65534
/* RPC Record States */
#define RPCSVC_READ_FRAGHDR 1
@@ -261,7 +265,22 @@ struct rpcsvc_request {
#define rpcsvc_request_vecstate(req) ((req)->vecstate)
#define rpcsvc_request_transport(req) ((req)->trans)
#define rpcsvc_request_transport_ref(req) (rpc_transport_ref((req)->trans))
-
+#define RPC_AUTH_ROOT_SQUASH(req) \
+ do { \
+ int gidcount = 0; \
+ if (req->svc->root_squash) { \
+ if (req->uid == RPC_ROOT_UID) \
+ req->uid = RPC_NOBODY_UID; \
+ if (req->gid == RPC_ROOT_GID) \
+ req->gid = RPC_NOBODY_GID; \
+ for (gidcount = 0; gidcount < req->auxgidcount; \
+ ++gidcount) { \
+ if (!req->auxgids[gidcount]) \
+ req->auxgids[gidcount] = \
+ RPC_NOBODY_GID; \
+ } \
+ } \
+ } while (0);
#define RPCSVC_ACTOR_SUCCESS 0
#define RPCSVC_ACTOR_ERROR (-1)
@@ -546,6 +565,8 @@ rpcsvc_transport_unix_options_build (dict_t **options, char *filepath);
int
rpcsvc_set_allow_insecure (rpcsvc_t *svc, dict_t *options);
int
+rpcsvc_set_root_squash (rpcsvc_t *svc, dict_t *options);
+int
rpcsvc_auth_array (rpcsvc_t *svc, char *volname, int *autharr, int arrlen);
char *
rpcsvc_volume_allowed (dict_t *options, char *volname);
diff --git a/tests/bugs/bug-887145.t b/tests/bugs/bug-887145.t
new file mode 100755
index 00000000000..8e5f039006c
--- /dev/null
+++ b/tests/bugs/bug-887145.t
@@ -0,0 +1,85 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{1,2};
+TEST $CLI volume set $V0 performance.open-behind off;
+TEST $CLI volume start $V0
+
+sleep 2;
+## Mount FUSE with caching disabled
+TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0;
+
+sleep 2;
+
+TEST mount -t nfs -o vers=3,nolock $H0:/$V0 $N0;
+
+useradd tmp_user 2>/dev/null 1>/dev/null;
+mkdir $M0/dir;
+mkdir $M0/other;
+cp /etc/passwd $M0/;
+cp $M0/passwd $M0/file;
+chmod 600 $M0/file;
+
+chown -R nfsnobody:nfsnobody $M0/dir;
+chown -R tmp_user:tmp_user $M0/other;
+
+TEST $CLI volume set $V0 server.root-squash on;
+
+sleep 2;
+
+# create files and directories in the root of the glusterfs and nfs mount
+# which is owned by root and hence the right behavior is getting EACCESS
+# as the fops are executed as nfsnobody.
+touch $M0/foo 2>/dev/null;
+TEST [ $? -ne 0 ]
+touch $N0/foo 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $M0/new 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $N0/new 2>/dev/null;
+TEST [ $? -ne 0 ]
+cp $M0/file $M0/tmp_file 2>/dev/null;
+TEST [ $? -ne 0 ]
+cp $N0/file $N0/tmp_file 2>/dev/null;
+TEST [ $? -ne 0 ]
+cat $M0/file 2>/dev/null;
+TEST [ $? -ne 0 ]
+# here read should be allowed because eventhough file "passwd" is owned
+# by root, the permissions if the file allow other users to read it.
+cat $M0/passwd 1>/dev/null;
+TEST [ $? -eq 0 ]
+cat $N0/passwd 1>/dev/null;
+TEST [ $? -eq 0 ]
+
+# create files and directories should succeed as the fops are being executed
+# inside the directory owned by nfsnobody
+TEST touch $M0/dir/file;
+TEST touch $N0/dir/foo;
+TEST mkdir $M0/dir/new;
+TEST mkdir $N0/dir/other;
+TEST rm -f $M0/dir/file $M0/dir/foo;
+TEST rmdir $N0/dir/*;
+
+# create files and directories here should fail as other directory is owned
+# by tmp_user.
+touch $M0/other/foo 2>/dev/null;
+TEST [ $? -ne 0 ]
+touch $N0/other/foo 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $M0/other/new 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $N0/other/new 2>/dev/null;
+TEST [ $? -ne 0 ]
+
+userdel tmp_user;
+rm -rf /home/tmp_user;
+
+TEST $CLI volume stop $V0;
+TEST $CLI volume delete $V0;
+
+cleanup;
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-set.c b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
index 9681f44428e..fc2c64a5fe2 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-set.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
@@ -163,6 +163,7 @@ struct volopt_map_entry glusterd_volopt_map[] = {
{"transport.keepalive", "protocol/server", "transport.socket.keepalive", NULL, NO_DOC, 0, 1},
{"server.allow-insecure", "protocol/server", "rpc-auth-allow-insecure", NULL, NO_DOC, 0, 1},
+ {"server.root-squash", "protocol/server", "root-squash", NULL, DOC, 0, 2},
{"server.statedump-path", "protocol/server", "statedump-path", NULL, DOC, 0, 1},
{"features.lock-heal", "protocol/server", "lk-heal", NULL, NO_DOC, 0, 1},
{"features.grace-timeout", "protocol/server", "grace-timeout", NULL, NO_DOC, 0, 1},
diff --git a/xlators/protocol/server/src/server.c b/xlators/protocol/server/src/server.c
index 9e60febfb53..3a5f84b1dd8 100644
--- a/xlators/protocol/server/src/server.c
+++ b/xlators/protocol/server/src/server.c
@@ -993,6 +993,7 @@ reconfigure (xlator_t *this, dict_t *options)
}
(void) rpcsvc_set_allow_insecure (rpc_conf, options);
+ (void) rpcsvc_set_root_squash (rpc_conf, options);
list_for_each_entry (listeners, &(rpc_conf->listeners), list) {
if (listeners->trans != NULL) {
if (listeners->trans->reconfigure )
@@ -1274,6 +1275,14 @@ struct volume_options options[] = {
{ .key = {"rpc-auth-allow-insecure"},
.type = GF_OPTION_TYPE_BOOL,
},
+ { .key = {"root-squash"},
+ .type = GF_OPTION_TYPE_BOOL,
+ .default_value = "off",
+ .description = "Map requests from uid/gid 0 to the anonymous "
+ "uid/gid. Note that this does not apply to any other"
+ "uids or gids that might be equally sensitive, such as"
+ "user bin or group staff."
+ },
{ .key = {"statedump-path"},
.type = GF_OPTION_TYPE_PATH,
.default_value = DEFAULT_VAR_RUN_DIRECTORY,
generated by cgit (git 2.34.1) at 2025-11-04 15:34:58 +0000