diff options
| -rw-r--r-- | source3/Makefile.in | 7 | ||||
| -rw-r--r-- | source3/configure.in | 3 | ||||
| -rw-r--r-- | source3/librpc/gen_ndr/ndr_xattr.c | 102 | ||||
| -rw-r--r-- | source3/librpc/gen_ndr/ndr_xattr.h | 16 | ||||
| -rw-r--r-- | source3/librpc/gen_ndr/xattr.h | 18 | ||||
| -rw-r--r-- | source3/librpc/idl/xattr.idl | 23 | ||||
| -rw-r--r-- | source3/modules/vfs_ea_tdb.c | 736 | ||||
| -rwxr-xr-x | source3/script/tests/selftest.sh | 1 | ||||
| -rwxr-xr-x | source3/script/tests/test_posix_s3.sh | 2 |
9 files changed, 905 insertions, 3 deletions
diff --git a/source3/Makefile.in b/source3/Makefile.in index 3918d29a3e..1d480552eb 100644 --- a/source3/Makefile.in +++ b/source3/Makefile.in @@ -503,6 +503,7 @@ VFS_CAP_OBJ = modules/vfs_cap.o VFS_EXPAND_MSDFS_OBJ = modules/vfs_expand_msdfs.o VFS_SHADOW_COPY_OBJ = modules/vfs_shadow_copy.o VFS_AFSACL_OBJ = modules/vfs_afsacl.o +VFS_EA_TDB_OBJ = modules/vfs_ea_tdb.o librpc/gen_ndr/ndr_xattr.o VFS_POSIXACL_OBJ = modules/vfs_posixacl.o VFS_AIXACL_OBJ = modules/vfs_aixacl.o modules/vfs_aixacl_util.o VFS_AIXACL2_OBJ = modules/vfs_aixacl2.o modules/vfs_aixacl_util.o modules/nfs4_acls.o @@ -1060,7 +1061,7 @@ modules: SHOWFLAGS $(MODULES) ## Perl IDL Compiler IDL_FILES = unixinfo.idl lsa.idl dfs.idl echo.idl winreg.idl initshutdown.idl \ srvsvc.idl svcctl.idl eventlog.idl wkssvc.idl netlogon.idl notify.idl \ - epmapper.idl messaging.idl + epmapper.idl messaging.idl xattr.idl idl: @IDL_FILES="$(IDL_FILES)" CPP="$(CPP)" PERL="$(PERL)" \ @@ -1684,6 +1685,10 @@ bin/afsacl.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_AFSACL_OBJ) @echo "Building plugin $@" @$(SHLD_MODULE) $(VFS_AFSACL_OBJ) +bin/ea_tdb.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_EA_TDB_OBJ) + @echo "Building plugin $@" + @$(SHLD_MODULE) $(VFS_EA_TDB_OBJ) + bin/posixacl.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_POSIXACL_OBJ) @echo "Building plugin $@" @$(SHLD_MODULE) $(VFS_POSIXACL_OBJ) diff --git a/source3/configure.in b/source3/configure.in index 98f5c450a8..4ddc64407c 100644 --- a/source3/configure.in +++ b/source3/configure.in @@ -707,7 +707,7 @@ dnl These have to be built static: default_static_modules="pdb_smbpasswd pdb_tdbsam rpc_lsa rpc_samr rpc_winreg rpc_initshutdown rpc_lsa_ds rpc_wkssvc rpc_svcctl2 rpc_ntsvcs rpc_net rpc_netdfs rpc_srvsvc2 rpc_spoolss rpc_eventlog2 auth_sam auth_unix auth_winbind auth_server auth_domain auth_builtin vfs_default nss_info_template" dnl These are preferably build shared, and static if dlopen() is not available -default_shared_modules="vfs_recycle vfs_audit vfs_extd_audit vfs_full_audit vfs_netatalk vfs_fake_perms vfs_default_quota vfs_readonly vfs_cap vfs_expand_msdfs vfs_shadow_copy charset_CP850 charset_CP437 auth_script vfs_readahead vfs_syncops" +default_shared_modules="vfs_recycle vfs_audit vfs_extd_audit vfs_full_audit vfs_netatalk vfs_fake_perms vfs_default_quota vfs_readonly vfs_cap vfs_expand_msdfs vfs_shadow_copy charset_CP850 charset_CP437 auth_script vfs_readahead vfs_syncops vfs_ea_tdb" if test "x$developer" = xyes; then default_static_modules="$default_static_modules rpc_rpcecho" @@ -6489,6 +6489,7 @@ SMB_MODULE(vfs_cap, \$(VFS_CAP_OBJ), "bin/cap.$SHLIBEXT", VFS) SMB_MODULE(vfs_expand_msdfs, \$(VFS_EXPAND_MSDFS_OBJ), "bin/expand_msdfs.$SHLIBEXT", VFS) SMB_MODULE(vfs_shadow_copy, \$(VFS_SHADOW_COPY_OBJ), "bin/shadow_copy.$SHLIBEXT", VFS) SMB_MODULE(vfs_afsacl, \$(VFS_AFSACL_OBJ), "bin/afsacl.$SHLIBEXT", VFS) +SMB_MODULE(vfs_ea_tdb, \$(VFS_EA_TDB_OBJ), "bin/ea_tdb.$SHLIBEXT", VFS) SMB_MODULE(vfs_posixacl, \$(VFS_POSIXACL_OBJ), "bin/posixacl.$SHLIBEXT", VFS) SMB_MODULE(vfs_aixacl, \$(VFS_AIXACL_OBJ), "bin/aixacl.$SHLIBEXT", VFS) SMB_MODULE(vfs_aixacl2, \$(VFS_AIXACL2_OBJ), "bin/aixacl2.$SHLIBEXT", VFS) diff --git a/source3/librpc/gen_ndr/ndr_xattr.c b/source3/librpc/gen_ndr/ndr_xattr.c new file mode 100644 index 0000000000..29a31a12b2 --- /dev/null +++ b/source3/librpc/gen_ndr/ndr_xattr.c @@ -0,0 +1,102 @@ +/* parser auto-generated by pidl */ + +#include "includes.h" +#include "librpc/gen_ndr/ndr_xattr.h" + +_PUBLIC_ enum ndr_err_code ndr_push_tdb_xattr(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattr *r) +{ + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 4)); + { + uint32_t _flags_save_string = ndr->flags; + ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_UTF8|LIBNDR_FLAG_STR_NULLTERM); + NDR_CHECK(ndr_push_string(ndr, NDR_SCALARS, r->name)); + ndr->flags = _flags_save_string; + } + NDR_CHECK(ndr_push_DATA_BLOB(ndr, NDR_SCALARS, r->value)); + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ enum ndr_err_code ndr_pull_tdb_xattr(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattr *r) +{ + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 4)); + { + uint32_t _flags_save_string = ndr->flags; + ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_UTF8|LIBNDR_FLAG_STR_NULLTERM); + NDR_CHECK(ndr_pull_string(ndr, NDR_SCALARS, &r->name)); + ndr->flags = _flags_save_string; + } + NDR_CHECK(ndr_pull_DATA_BLOB(ndr, NDR_SCALARS, &r->value)); + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ void ndr_print_tdb_xattr(struct ndr_print *ndr, const char *name, const struct tdb_xattr *r) +{ + ndr_print_struct(ndr, name, "tdb_xattr"); + ndr->depth++; + ndr_print_string(ndr, "name", r->name); + ndr_print_DATA_BLOB(ndr, "value", r->value); + ndr->depth--; +} + +_PUBLIC_ enum ndr_err_code ndr_push_tdb_xattrs(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattrs *r) +{ + uint32_t cntr_xattrs_0; + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 4)); + NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->num_xattrs)); + for (cntr_xattrs_0 = 0; cntr_xattrs_0 < r->num_xattrs; cntr_xattrs_0++) { + NDR_CHECK(ndr_push_tdb_xattr(ndr, NDR_SCALARS, &r->xattrs[cntr_xattrs_0])); + } + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ enum ndr_err_code ndr_pull_tdb_xattrs(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattrs *r) +{ + uint32_t cntr_xattrs_0; + TALLOC_CTX *_mem_save_xattrs_0; + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 4)); + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->num_xattrs)); + NDR_PULL_ALLOC_N(ndr, r->xattrs, r->num_xattrs); + _mem_save_xattrs_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->xattrs, 0); + for (cntr_xattrs_0 = 0; cntr_xattrs_0 < r->num_xattrs; cntr_xattrs_0++) { + NDR_CHECK(ndr_pull_tdb_xattr(ndr, NDR_SCALARS, &r->xattrs[cntr_xattrs_0])); + } + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_xattrs_0, 0); + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ void ndr_print_tdb_xattrs(struct ndr_print *ndr, const char *name, const struct tdb_xattrs *r) +{ + uint32_t cntr_xattrs_0; + ndr_print_struct(ndr, name, "tdb_xattrs"); + ndr->depth++; + ndr_print_uint32(ndr, "num_xattrs", r->num_xattrs); + ndr->print(ndr, "%s: ARRAY(%d)", "xattrs", r->num_xattrs); + ndr->depth++; + for (cntr_xattrs_0=0;cntr_xattrs_0<r->num_xattrs;cntr_xattrs_0++) { + char *idx_0=NULL; + asprintf(&idx_0, "[%d]", cntr_xattrs_0); + if (idx_0) { + ndr_print_tdb_xattr(ndr, "xattrs", &r->xattrs[cntr_xattrs_0]); + free(idx_0); + } + } + ndr->depth--; + ndr->depth--; +} diff --git a/source3/librpc/gen_ndr/ndr_xattr.h b/source3/librpc/gen_ndr/ndr_xattr.h new file mode 100644 index 0000000000..a18477f347 --- /dev/null +++ b/source3/librpc/gen_ndr/ndr_xattr.h @@ -0,0 +1,16 @@ +/* header auto-generated by pidl */ + +#include "librpc/ndr/libndr.h" +#include "librpc/gen_ndr/xattr.h" + +#ifndef _HEADER_NDR_xattr +#define _HEADER_NDR_xattr + +#define NDR_XATTR_CALL_COUNT (0) +enum ndr_err_code ndr_push_tdb_xattr(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattr *r); +enum ndr_err_code ndr_pull_tdb_xattr(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattr *r); +void ndr_print_tdb_xattr(struct ndr_print *ndr, const char *name, const struct tdb_xattr *r); +enum ndr_err_code ndr_push_tdb_xattrs(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattrs *r); +enum ndr_err_code ndr_pull_tdb_xattrs(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattrs *r); +void ndr_print_tdb_xattrs(struct ndr_print *ndr, const char *name, const struct tdb_xattrs *r); +#endif /* _HEADER_NDR_xattr */ diff --git a/source3/librpc/gen_ndr/xattr.h b/source3/librpc/gen_ndr/xattr.h new file mode 100644 index 0000000000..ee30376be8 --- /dev/null +++ b/source3/librpc/gen_ndr/xattr.h @@ -0,0 +1,18 @@ +/* header auto-generated by pidl */ + +#include <stdint.h> + +#ifndef _HEADER_xattr +#define _HEADER_xattr + +struct tdb_xattr { + const char * name;/* [flag(LIBNDR_FLAG_STR_UTF8|LIBNDR_FLAG_STR_NULLTERM)] */ + DATA_BLOB value; +}/* [public] */; + +struct tdb_xattrs { + uint32_t num_xattrs; + struct tdb_xattr *xattrs; +}/* [public] */; + +#endif /* _HEADER_xattr */ diff --git a/source3/librpc/idl/xattr.idl b/source3/librpc/idl/xattr.idl new file mode 100644 index 0000000000..ec230a4efb --- /dev/null +++ b/source3/librpc/idl/xattr.idl @@ -0,0 +1,23 @@ +#include "idl_types.h" + +/* + IDL structures for xattrs +*/ + +[ + pointer_default(unique) +] +interface xattr +{ + /* xattrs for file systems that don't have any */ + + typedef [public] struct { + utf8string name; + DATA_BLOB value; + } tdb_xattr; + + typedef [public] struct { + uint32 num_xattrs; + tdb_xattr xattrs[num_xattrs]; + } tdb_xattrs; +} diff --git a/source3/modules/vfs_ea_tdb.c b/source3/modules/vfs_ea_tdb.c new file mode 100644 index 0000000000..8cf04d79ad --- /dev/null +++ b/source3/modules/vfs_ea_tdb.c @@ -0,0 +1,736 @@ +/* + * Store posix-level xattrs in a tdb + * + * Copyright (C) Volker Lendecke, 2007 + * + * 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 3 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "includes.h" +#include "librpc/gen_ndr/xattr.h" +#include "librpc/gen_ndr/ndr_xattr.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_VFS + +/* + * unmarshall tdb_xattrs + */ + +static NTSTATUS ea_tdb_pull_attrs(TALLOC_CTX *mem_ctx, + const TDB_DATA *data, + struct tdb_xattrs **presult) +{ + DATA_BLOB blob; + enum ndr_err_code ndr_err; + struct tdb_xattrs *result; + + if (!(result = TALLOC_ZERO_P(mem_ctx, struct tdb_xattrs))) { + return NT_STATUS_NO_MEMORY; + } + + if (data->dsize == 0) { + *presult = result; + return NT_STATUS_OK; + } + + blob = data_blob_const(data->dptr, data->dsize); + + ndr_err = ndr_pull_struct_blob( + &blob, result, result, + (ndr_pull_flags_fn_t)ndr_pull_tdb_xattrs); + + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + DEBUG(0, ("ndr_pull_tdb_xattrs failed: %s\n", + ndr_errstr(ndr_err))); + TALLOC_FREE(result); + return ndr_map_error2ntstatus(ndr_err);; + } + + *presult = result; + return NT_STATUS_OK; +} + +/* + * marshall tdb_xattrs + */ + +static NTSTATUS ea_tdb_push_attrs(TALLOC_CTX *mem_ctx, + const struct tdb_xattrs *attribs, + TDB_DATA *data) +{ + DATA_BLOB blob; + enum ndr_err_code ndr_err; + + ndr_err = ndr_push_struct_blob( + &blob, mem_ctx, attribs, + (ndr_push_flags_fn_t)ndr_push_tdb_xattrs); + + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + DEBUG(0, ("ndr_push_tdb_xattrs failed: %s\n", + ndr_errstr(ndr_err))); + return ndr_map_error2ntstatus(ndr_err);; + } + + *data = make_tdb_data(blob.data, blob.length); + return NT_STATUS_OK; +} + +/* + * Load tdb_xattrs for a file from the tdb + */ + +static NTSTATUS ea_tdb_load_attrs(TALLOC_CTX *mem_ctx, + struct db_context *db_ctx, + const struct file_id *id, + struct tdb_xattrs **presult) +{ + uint8 id_buf[16]; + NTSTATUS status; + TDB_DATA data; + + push_file_id_16((char *)id_buf, id); + + if (db_ctx->fetch(db_ctx, mem_ctx, + make_tdb_data(id_buf, sizeof(id_buf)), + &data) == -1) { + return NT_STATUS_INTERNAL_DB_CORRUPTION; + } + + status = ea_tdb_pull_attrs(mem_ctx, &data, presult); + TALLOC_FREE(data.dptr); + return NT_STATUS_OK; +} + +/* + * fetch_lock the tdb_ea record for a file + */ + +static struct db_record *ea_tdb_lock_attrs(TALLOC_CTX *mem_ctx, + struct db_context *db_ctx, + const struct file_id *id) +{ + uint8 id_buf[16]; + push_file_id_16((char *)id_buf, id); + return db_ctx->fetch_locked(db_ctx, mem_ctx, + make_tdb_data(id_buf, sizeof(id_buf))); +} + +/* + * Save tdb_xattrs to a previously fetch_locked record + */ + +static NTSTATUS ea_tdb_save_attrs(struct db_record *rec, + const struct tdb_xattrs *attribs) +{ + TDB_DATA data; + NTSTATUS status; + + status = ea_tdb_push_attrs(talloc_tos(), attribs, &data); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(0, ("ea_tdb_push_attrs failed: %s\n", + nt_errstr(status))); + return status; + } + + status = rec->store(rec, data, 0); + + TALLOC_FREE(data.dptr); + + return status; +} + +/* + * Worker routine for getxattr and fgetxattr + */ + +static ssize_t ea_tdb_getattr(struct db_context *db_ctx, + const struct file_id *id, + const char *name, void *value, size_t size) +{ + struct tdb_xattrs *attribs; + uint32_t i; + ssize_t result = -1; + NTSTATUS status; + + status = ea_tdb_load_attrs(talloc_tos(), db_ctx, id, &attribs); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(10, ("ea_tdb_fetch_attrs failed: %s\n", + nt_errstr(status))); + errno = EINVAL; + return -1; + } + + for (i=0; i<attribs->num_xattrs; i++) { + if (strcmp(attribs->xattrs[i].name, name) == 0) { + break; + } + } + + if (i == attribs->num_xattrs) { + errno = ENOATTR; + goto fail; + } + + if (attribs->xattrs[i].value.length > size) { + errno = ERANGE; + goto fail; + } + + memcpy(value, attribs->xattrs[i].value.data, + attribs->xattrs[i].value.length); + result = attribs->xattrs[i].value.length; + + fail: + TALLOC_FREE(attribs); + return result; +} + +static ssize_t ea_tdb_getxattr(struct vfs_handle_struct *handle, + const char *path, const char *name, + void *value, size_t size) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_STAT(handle->conn, path, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_getattr(db, &id, name, value, size); +} + +static ssize_t ea_tdb_fgetxattr(struct vfs_handle_struct *handle, + struct files_struct *fsp, + const char *name, void *value, size_t size) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_getattr(db, &id, name, value, size); +} + +/* + * Worker routine for setxattr and fsetxattr + */ + +static int ea_tdb_setattr(struct db_context *db_ctx, + const struct file_id *id, const char *name, + const void *value, size_t size, int flags) +{ + NTSTATUS status; + struct db_record *rec; + struct tdb_xattrs *attribs; + uint32_t i; + + rec = ea_tdb_lock_attrs(talloc_tos(), db_ctx, id); + + if (rec == NULL) { + DEBUG(0, ("ea_tdb_lock_attrs failed\n")); + errno = EINVAL; + return -1; + } + + status = ea_tdb_pull_attrs(rec, &rec->value, &attribs); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(10, ("ea_tdb_fetch_attrs failed: %s\n", + nt_errstr(status))); + TALLOC_FREE(rec); + return -1; + } + + for (i=0; i<attribs->num_xattrs; i++) { + if (strcmp(attribs->xattrs[i].name, name) == 0) { + break; + } + } + + if (i == attribs->num_xattrs) { + struct tdb_xattr *tmp; + + tmp = TALLOC_REALLOC_ARRAY( + attribs, attribs->xattrs, struct tdb_xattr, + attribs->num_xattrs + 1); + + if (tmp == NULL) { + DEBUG(0, ("TALLOC_REALLOC_ARRAY failed\n")); + TALLOC_FREE(rec); + errno = ENOMEM; + return -1; + } + + attribs->xattrs = tmp; + attribs->num_xattrs += 1; + } + + attribs->xattrs[i].name = name; + attribs->xattrs[i].value.data = CONST_DISCARD(uint8 *, value); + attribs->xattrs[i].value.length = size; + + status = ea_tdb_save_attrs(rec, attribs); + + TALLOC_FREE(rec); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(1, ("save failed: %s\n", nt_errstr(status))); + return -1; + } + + return 0; +} + +static int ea_tdb_setxattr(struct vfs_handle_struct *handle, + const char *path, const char *name, + const void *value, size_t size, int flags) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_STAT(handle->conn, path, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_setattr(db, &id, name, value, size, flags); +} + +static int ea_tdb_fsetxattr(struct vfs_handle_struct *handle, + struct files_struct *fsp, + const char *name, const void *value, + size_t size, int flags) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_setattr(db, &id, name, value, size, flags); +} + +/* + * Worker routine for listxattr and flistxattr + */ + +static ssize_t ea_tdb_listattr(struct db_context *db_ctx, + const struct file_id *id, char *list, + size_t size) +{ + NTSTATUS status; + struct tdb_xattrs *attribs; + uint32_t i; + size_t len = 0; + + status = ea_tdb_load_attrs(talloc_tos(), db_ctx, id, &attribs); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(10, ("ea_tdb_fetch_attrs failed: %s\n", + nt_errstr(status))); + errno = EINVAL; + return -1; + } + + DEBUG(10, ("ea_tdb_listattr: Found %d xattrs\n", attribs->num_xattrs)); + + for (i=0; i<attribs->num_xattrs; i++) { + size_t tmp; + + DEBUG(10, ("ea_tdb_listattr: xattrs[i].name: %s\n", + attribs->xattrs[i].name)); + + tmp = strlen(attribs->xattrs[i].name); + + /* + * Try to protect against overflow + */ + + if (len + (tmp+1) < len) { + TALLOC_FREE(attribs); + errno = EINVAL; + return -1; + } + + /* + * Take care of the terminating NULL + */ + len += (tmp + 1); + } + + if (len > size) { + TALLOC_FREE(attribs); + errno = ERANGE; + return -1; + } + + len = 0; + + for (i=0; i<attribs->num_xattrs; i++) { + strlcpy(list+len, attribs->xattrs[i].name, + size-len); + len += (strlen(attribs->xattrs[i].name) + 1); + } + + TALLOC_FREE(attribs); + return len; +} + +static ssize_t ea_tdb_listxattr(struct vfs_handle_struct *handle, + const char *path, char *list, size_t size) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_STAT(handle->conn, path, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_listattr(db, &id, list, size); +} + +static ssize_t ea_tdb_flistxattr(struct vfs_handle_struct *handle, + struct files_struct *fsp, char *list, + size_t size) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_listattr(db, &id, list, size); +} + +/* + * Worker routine for removexattr and fremovexattr + */ + +static int ea_tdb_removeattr(struct db_context *db_ctx, + const struct file_id *id, const char *name) +{ + NTSTATUS status; + struct db_record *rec; + struct tdb_xattrs *attribs; + uint32_t i; + + rec = ea_tdb_lock_attrs(talloc_tos(), db_ctx, id); + + if (rec == NULL) { + DEBUG(0, ("ea_tdb_lock_attrs failed\n")); + errno = EINVAL; + return -1; + } + + status = ea_tdb_pull_attrs(rec, &rec->value, &attribs); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(10, ("ea_tdb_fetch_attrs failed: %s\n", + nt_errstr(status))); + TALLOC_FREE(rec); + return -1; + } + + for (i=0; i<attribs->num_xattrs; i++) { + if (strcmp(attribs->xattrs[i].name, name) == 0) { + break; + } + } + + if (i == attribs->num_xattrs) { + TALLOC_FREE(rec); + errno = ENOATTR; + return -1; + } + + attribs->xattrs[i] = + attribs->xattrs[attribs->num_xattrs-1]; + attribs->num_xattrs -= 1; + + if (attribs->num_xattrs == 0) { + rec->delete_rec(rec); + TALLOC_FREE(rec); + return 0; + } + + status = ea_tdb_save_attrs(rec, attribs); + + TALLOC_FREE(rec); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(1, ("save failed: %s\n", nt_errstr(status))); + return -1; + } + + return 0; +} + +static int ea_tdb_removexattr(struct vfs_handle_struct *handle, + const char *path, const char *name) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_STAT(handle->conn, path, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_removeattr(db, &id, name); +} + +static int ea_tdb_fremovexattr(struct vfs_handle_struct *handle, + struct files_struct *fsp, const char *name) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + return ea_tdb_removeattr(db, &id, name); +} + +/* + * Open the tdb file upon VFS_CONNECT + */ + +static bool ea_tdb_init(int snum, struct db_context **p_db) +{ + struct db_context *db; + const char *dbname; + + dbname = lp_parm_const_string(snum, "ea", "tdb", lock_path("eas.tdb")); + + if (dbname == NULL) { + errno = ENOTSUP; + return false; + } + + become_root(); + db = db_open(NULL, dbname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600); + unbecome_root(); + + if (db == NULL) { + errno = ENOTSUP; + return false; + } + + *p_db = db; + return true; +} + +/* + * On unlink we need to delete the tdb record + */ +static int ea_tdb_unlink(vfs_handle_struct *handle, const char *path) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + struct db_record *rec; + int ret; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_STAT(handle->conn, path, &sbuf) == -1) { + return -1; + } + + ret = SMB_VFS_NEXT_UNLINK(handle, path); + + if (ret == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + rec = ea_tdb_lock_attrs(talloc_tos(), db, &id); + + /* + * If rec == NULL there's not much we can do about it + */ + + if (rec != NULL) { + rec->delete_rec(rec); + TALLOC_FREE(rec); + } + + return 0; +} + +/* + * On rmdir we need to delete the tdb record + */ +static int ea_tdb_rmdir(vfs_handle_struct *handle, const char *path) +{ + SMB_STRUCT_STAT sbuf; + struct file_id id; + struct db_context *db; + struct db_record *rec; + int ret; + + SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1); + + if (SMB_VFS_STAT(handle->conn, path, &sbuf) == -1) { + return -1; + } + + ret = SMB_VFS_NEXT_RMDIR(handle, path); + + if (ret == -1) { + return -1; + } + + id = SMB_VFS_FILE_ID_CREATE(handle->conn, sbuf.st_dev, sbuf.st_ino); + + rec = ea_tdb_lock_attrs(talloc_tos(), db, &id); + + /* + * If rec == NULL there's not much we can do about it + */ + + if (rec != NULL) { + rec->delete_rec(rec); + TALLOC_FREE(rec); + } + + return 0; +} + +/* + * Destructor for the VFS private data + */ + +static void close_ea_db(void **data) +{ + struct db_context **p_db = (struct db_context **)data; + TALLOC_FREE(*p_db); +} + +static int ea_tdb_connect(vfs_handle_struct *handle, const char *service, + const char *user) +{ + fstring sname; + int res, snum; + struct db_context *db; + + res = SMB_VFS_NEXT_CONNECT(handle, service, user); + if (res < 0) { + return res; + } + + fstrcpy(sname, service); + snum = find_service(sname); + if (snum == -1) { + /* + * Should not happen, but we should not fail just *here*. + */ + return 0; + } + + if (!ea_tdb_init(snum, &db)) { + DEBUG(5, ("Could not init ea tdb\n")); + lp_do_parameter(snum, "ea support", "False"); + return 0; + } + + lp_do_parameter(snum, "ea support", "True"); + + SMB_VFS_HANDLE_SET_DATA(handle, db, close_ea_db, + struct db_context, return -1); + + return 0; +} + +/* VFS operations structure */ + +static const vfs_op_tuple ea_tdb_ops[] = { + {SMB_VFS_OP(ea_tdb_getxattr), SMB_VFS_OP_GETXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_fgetxattr), SMB_VFS_OP_FGETXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_setxattr), SMB_VFS_OP_SETXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_fsetxattr), SMB_VFS_OP_FSETXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_listxattr), SMB_VFS_OP_LISTXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_flistxattr), SMB_VFS_OP_FLISTXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_removexattr), SMB_VFS_OP_REMOVEXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_fremovexattr), SMB_VFS_OP_FREMOVEXATTR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_unlink), SMB_VFS_OP_UNLINK, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_rmdir), SMB_VFS_OP_RMDIR, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(ea_tdb_connect), SMB_VFS_OP_CONNECT, + SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP} +}; + +NTSTATUS vfs_ea_tdb_init(void); +NTSTATUS vfs_ea_tdb_init(void) +{ + return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "ea_tdb", + ea_tdb_ops); +} diff --git a/source3/script/tests/selftest.sh b/source3/script/tests/selftest.sh index 86abb15ed1..08bfdf601c 100755 --- a/source3/script/tests/selftest.sh +++ b/source3/script/tests/selftest.sh @@ -186,6 +186,7 @@ cat >$SERVERCONFFILE<<EOF map hidden = yes map system = yes create mask = 755 + vfs objects = $BINDIR/ea_tdb.so [hideunread] copy = tmp hide unreadable = yes diff --git a/source3/script/tests/test_posix_s3.sh b/source3/script/tests/test_posix_s3.sh index 9f672897ac..0b4a52d4b5 100755 --- a/source3/script/tests/test_posix_s3.sh +++ b/source3/script/tests/test_posix_s3.sh @@ -47,7 +47,7 @@ unix="UNIX-INFO2" tests="$base $raw $rpc $unix" skipped="BASE-CHARSET BASE-DELAYWRITE BASE-TCONDEV" -skipped="$skipped RAW-ACLS RAW-COMPOSITE RAW-CONTEXT RAW-EAS" +skipped="$skipped RAW-ACLS RAW-COMPOSITE RAW-CONTEXT" skipped="$skipped RAW-IOCTL" skipped="$skipped RAW-QFILEINFO RAW-QFSINFO RAW-SEARCH" skipped="$skipped RAW-SFILEINFO RAW-STREAMS" |