X-Git-Url: http://git.samba.org/?a=blobdiff_plain;f=source3%2Fmodules%2Fvfs_fake_perms.c;h=0089186be1a10381825d75fb5165f40dac47243a;hb=HEAD;hp=3a18fbb730c00407c8cd5398769c2811bc73986d;hpb=81256ecbb977351b4d6a992df17be4b107071935;p=samba.git diff --git a/source3/modules/vfs_fake_perms.c b/source3/modules/vfs_fake_perms.c index 3a18fbb730c..0089186be1a 100644 --- a/source3/modules/vfs_fake_perms.c +++ b/source3/modules/vfs_fake_perms.c @@ -9,7 +9,7 @@ * * 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 + * 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, @@ -18,270 +18,91 @@ * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * along with this program; if not, see . */ -#include "config.h" +#include "includes.h" +#include "smbd/smbd.h" +#include "system/filesys.h" +#include "auth.h" -#include -#include -#ifdef HAVE_UTIME_H -#include -#endif -#ifdef HAVE_DIRENT_H -#include -#endif -#ifdef HAVE_FCNTL_H -#include -#endif -#include -#include +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_VFS -#include -#include - -static struct vfs_ops default_vfs_ops; /* For passthrough operation */ -static struct smb_vfs_handle_struct *fake_perms_handle; /* use fake_perms_handle->data for storing per-instance private data */ - -static int fake_perms_stat(struct connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf) +static int fake_perms_stat(vfs_handle_struct *handle, + struct smb_filename *smb_fname) { - int ret = default_vfs_ops.stat(conn, fname, sbuf); - if (ret == 0) { - extern struct current_user current_user; - - if (S_ISDIR(sbuf->st_mode)) { - sbuf->st_mode = S_IFDIR | S_IRWXU; - } else { - sbuf->st_mode = S_IRWXU; - } - sbuf->st_uid = current_user.uid; - sbuf->st_gid = current_user.gid; - } - return ret; -} + int ret; -static int fake_perms_fstat(struct files_struct *fsp, int fd, SMB_STRUCT_STAT *sbuf) -{ - int ret = default_vfs_ops.fstat(fsp, fd, sbuf); - if (ret == 0) { - extern struct current_user current_user; - - if (S_ISDIR(sbuf->st_mode)) { - sbuf->st_mode = S_IFDIR | S_IRWXU; - } else { - sbuf->st_mode = S_IRWXU; - } - sbuf->st_uid = current_user.uid; - sbuf->st_gid = current_user.gid; + ret = SMB_VFS_NEXT_STAT(handle, smb_fname); + if (ret != 0) { + return ret; } - return ret; -} - -#if 0 -static size_t fake_perms_fget_nt_acl(struct files_struct *fsp, int fd, struct security_descriptor_info **ppdesc) -{ - return default_vfs_ops.fget_nt_acl(fsp, fd, ppdesc); -} - -static size_t fake_perms_get_nt_acl(struct files_struct *fsp, const char *name, struct security_descriptor_info **ppdesc) -{ - return default_vfs_ops.get_nt_acl(fsp, name, ppdesc); -} - -static BOOL fake_perms_fset_nt_acl(struct files_struct *fsp, int fd, uint32 security_info_sent, struct security_descriptor_info *psd) -{ - return default_vfs_ops.fset_nt_acl(fsp, fd, security_info_sent, psd); -} - -static BOOL fake_perms_set_nt_acl(struct files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd) -{ - return default_vfs_ops.set_nt_acl(fsp, name, security_info_sent, psd); -} - -static BOOL fake_perms_chmod_acl(struct connection_struct *conn, const char *name, mode_t mode) -{ - return default_vfs_ops.chmod_acl(conn, name, mode); -} - -static BOOL fake_perms_fchmod_acl(struct files_struct *fsp, int fd, mode_t mode) -{ - return default_vfs_ops.fchmod_acl(fsp, fd, mode); -} - -static int fake_perms_sys_acl_get_entry(struct connection_struct *conn, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p) -{ - return default_vfs_ops.sys_acl_get_entry(conn, theacl, entry_id, entry_p); -} - -static int fake_perms_sys_acl_get_tag_type(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) -{ - return default_vfs_ops.sys_acl_get_tag_type(conn, entry_d, tag_type_p); -} - -static int fake_perms_sys_acl_get_permset(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) -{ - return default_vfs_ops.sys_acl_get_permset(conn, entry_d, permset_p); -} - -static void *fake_perms_sys_acl_get_qualifier(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d) -{ - return default_vfs_ops.sys_acl_get_qualifier(conn, entry_d); -} - -static SMB_ACL_T fake_perms_sys_acl_get_file(struct connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type) -{ - return default_vfs_ops.sys_acl_get_file(conn, path_p, type); -} - -static SMB_ACL_T fake_perms_sys_acl_get_fd(struct files_struct *fsp, int fd) -{ - return default_vfs_ops.sys_acl_get_fd(fsp, fd); -} - -static int fake_perms_sys_acl_clear_perms(struct connection_struct *conn, SMB_ACL_PERMSET_T permset) -{ - return default_vfs_ops.sys_acl_clear_perms(conn, permset); -} - -static int fake_perms_sys_acl_add_perm(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) -{ - return default_vfs_ops.sys_acl_add_perm(conn, permset, perm); -} -static char *fake_perms_sys_acl_to_text(struct connection_struct *conn, SMB_ACL_T theacl, ssize_t *plen) -{ - return default_vfs_ops.sys_acl_to_text(conn, theacl, plen); -} - -static SMB_ACL_T fake_perms_sys_acl_init(struct connection_struct *conn, int count) -{ - return default_vfs_ops.sys_acl_init(conn, count); -} - -static int fake_perms_sys_acl_create_entry(struct connection_struct *conn, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) -{ - return default_vfs_ops.sys_acl_create_entry(conn, pacl, pentry); -} - -static int fake_perms_sys_acl_set_tag_type(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) -{ - return default_vfs_ops.sys_acl_set_tag_type(conn, entry, tagtype); -} - -static int fake_perms_sys_acl_set_qualifier(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, void *qual) -{ - return default_vfs_ops.sys_acl_set_qualifier(conn, entry, qual); -} - -static int fake_perms_sys_acl_set_permset(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset) -{ - return default_vfs_ops.sys_acl_set_permset(conn, entry, permset); -} - -static int fake_perms_sys_acl_valid(struct connection_struct *conn, SMB_ACL_T theacl ) -{ - return default_vfs_ops.sys_acl_valid(conn, theacl ); -} - -static int fake_perms_sys_acl_set_file(struct connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) -{ - return default_vfs_ops.sys_acl_set_file(conn, name, acltype, theacl); -} + if (S_ISDIR(smb_fname->st.st_ex_mode)) { + smb_fname->st.st_ex_mode = S_IFDIR | S_IRWXU; + } else { + smb_fname->st.st_ex_mode = S_IRWXU; + } -static int fake_perms_sys_acl_set_fd(struct files_struct *fsp, int fd, SMB_ACL_T theacl) -{ - return default_vfs_ops.sys_acl_set_fd(fsp, fd, theacl); -} + if (handle->conn->session_info != NULL) { + struct security_unix_token *utok; + + utok = handle->conn->session_info->unix_token; + smb_fname->st.st_ex_uid = utok->uid; + smb_fname->st.st_ex_gid = utok->gid; + } else { + /* + * We have an artificial connection for dfs for example. It + * sucks, but the current uid/gid is the best we have. + */ + smb_fname->st.st_ex_uid = geteuid(); + smb_fname->st.st_ex_gid = getegid(); + } -static int fake_perms_sys_acl_delete_def_file(struct connection_struct *conn, const char *path) -{ - return default_vfs_ops.sys_acl_delete_def_file(conn, path); + return ret; } -static int fake_perms_sys_acl_get_perm(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) +static int fake_perms_fstat(vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf) { - return default_vfs_ops.sys_acl_get_perm(conn, permset, perm); -} + int ret; -static int fake_perms_sys_acl_free_text(struct connection_struct *conn, char *text) -{ - return default_vfs_ops.sys_acl_free_text(conn, text); -} + ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf); + if (ret != 0) { + return ret; + } -static int fake_perms_sys_acl_free_acl(struct connection_struct *conn, SMB_ACL_T posix_acl) -{ - return default_vfs_ops.sys_acl_free_acl(conn, posix_acl); -} + if (S_ISDIR(sbuf->st_ex_mode)) { + sbuf->st_ex_mode = S_IFDIR | S_IRWXU; + } else { + sbuf->st_ex_mode = S_IRWXU; + } + if (handle->conn->session_info != NULL) { + struct security_unix_token *utok; + + utok = handle->conn->session_info->unix_token; + sbuf->st_ex_uid = utok->uid; + sbuf->st_ex_gid = utok->gid; + } else { + /* + * We have an artificial connection for dfs for example. It + * sucks, but the current uid/gid is the best we have. + */ + sbuf->st_ex_uid = geteuid(); + sbuf->st_ex_gid = getegid(); + } -static int fake_perms_sys_acl_free_qualifier(struct connection_struct *conn, void *qualifier, SMB_ACL_TAG_T tagtype) -{ - return default_vfs_ops.sys_acl_free_qualifier(conn, qualifier, tagtype); + return ret; } -#endif - -/* VFS operations structure */ - -static vfs_op_tuple fake_perms_ops[] = { - - /* NT File ACL operations */ -#if 0 - {fake_perms_fget_nt_acl, SMB_VFS_OP_FGET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_get_nt_acl, SMB_VFS_OP_GET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_fset_nt_acl, SMB_VFS_OP_FSET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_set_nt_acl, SMB_VFS_OP_SET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT}, - - /* POSIX ACL operations */ - {fake_perms_chmod_acl, SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_fchmod_acl, SMB_VFS_OP_FCHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT}, - - {fake_perms_sys_acl_get_entry, SMB_VFS_OP_SYS_ACL_GET_ENTRY, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_get_tag_type, SMB_VFS_OP_SYS_ACL_GET_TAG_TYPE, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_get_permset, SMB_VFS_OP_SYS_ACL_GET_PERMSET, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_get_qualifier, SMB_VFS_OP_SYS_ACL_GET_QUALIFIER, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_get_file, SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_get_fd, SMB_VFS_OP_SYS_ACL_GET_FD, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_clear_perms, SMB_VFS_OP_SYS_ACL_CLEAR_PERMS, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_add_perm, SMB_VFS_OP_SYS_ACL_ADD_PERM, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_to_text, SMB_VFS_OP_SYS_ACL_TO_TEXT, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_init, SMB_VFS_OP_SYS_ACL_INIT, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_create_entry, SMB_VFS_OP_SYS_ACL_CREATE_ENTRY, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_set_tag_type, SMB_VFS_OP_SYS_ACL_SET_TAG_TYPE, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_set_qualifier, SMB_VFS_OP_SYS_ACL_SET_QUALIFIER, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_set_permset, SMB_VFS_OP_SYS_ACL_SET_PERMSET, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_valid, SMB_VFS_OP_SYS_ACL_VALID, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_set_file, SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_set_fd, SMB_VFS_OP_SYS_ACL_SET_FD, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_delete_def_file, SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_get_perm, SMB_VFS_OP_SYS_ACL_GET_PERM, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_free_text, SMB_VFS_OP_SYS_ACL_FREE_TEXT, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_free_acl, SMB_VFS_OP_SYS_ACL_FREE_ACL, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_sys_acl_free_qualifier, SMB_VFS_OP_SYS_ACL_FREE_QUALIFIER, SMB_VFS_LAYER_TRANSPARENT}, -#endif - - {fake_perms_stat, SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT}, - {fake_perms_fstat, SMB_VFS_OP_FSTAT, SMB_VFS_LAYER_TRANSPARENT}, - {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP} +static struct vfs_fn_pointers vfs_fake_perms_fns = { + .stat_fn = fake_perms_stat, + .fstat_fn = fake_perms_fstat }; -/* VFS initialisation - return initialized vfs_op_tuple array back to Samba */ - -static vfs_op_tuple *fake_perms_init(const struct vfs_ops *def_vfs_ops, - struct smb_vfs_handle_struct *vfs_handle) -{ - DEBUG(3, ("Initialising default vfs hooks\n")); - - memcpy(&default_vfs_ops, def_vfs_ops, sizeof(struct vfs_ops)); - - /* Remember vfs_handle for further allocation and referencing of private - information in vfs_handle->data - */ - fake_perms_handle = vfs_handle; - return fake_perms_ops; -} - -NTSTATUS vfs_fake_perms_init(void) +static_decl_vfs; +NTSTATUS vfs_fake_perms_init(TALLOC_CTX *ctx) { - return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fake_perms", fake_perms_init); + return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fake_perms", + &vfs_fake_perms_fns); }