Copyright (C) Christian Ambach <cambach1@de.ibm.com> 2006
Major code contributions by Chetan Shringarpure <chetan.sh@in.ibm.com>
+ and Gomati Mohanan <gomati.mohanan@in.ibm.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
#include "includes.h"
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_VFS
+
+#include <gpfs_gpl.h>
+#include "nfs4_acls.h"
+
static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
int fd, uint32 share_mode)
return 0;
}
+static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
+{
+ int i;
+ if (gacl==NULL)
+ {
+ DEBUG(0, ("gpfs acl is NULL\n"));
+ return;
+ }
+
+ DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
+ gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
+ for(i=0; i<gacl->acl_nace; i++)
+ {
+ struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
+ DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
+ i, gace->aceType, gace->aceFlags, gace->aceMask,
+ gace->aceIFlags, gace->aceWho));
+ }
+}
+
+static struct gpfs_acl *gpfs_getacl_alloc(const char *fname, gpfs_aclType_t type)
+{
+ struct gpfs_acl *acl;
+ size_t len = 200;
+ int ret;
+ TALLOC_CTX *mem_ctx = main_loop_talloc_get();
+
+ acl = (struct gpfs_acl *)talloc_size(mem_ctx, len);
+ if (acl == NULL) {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ acl->acl_len = len;
+ acl->acl_level = 0;
+ acl->acl_version = 0;
+ acl->acl_type = type;
+
+ ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
+ if ((ret != 0) && (errno == ENOSPC)) {
+ struct gpfs_acl *new_acl = (struct gpfs_acl *)talloc_size(
+ mem_ctx, acl->acl_len + sizeof(struct gpfs_acl));
+ if (new_acl == NULL) {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ new_acl->acl_len = acl->acl_len;
+ new_acl->acl_level = acl->acl_level;
+ new_acl->acl_version = acl->acl_version;
+ new_acl->acl_type = acl->acl_type;
+ acl = new_acl;
+
+ ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
+ }
+ if (ret != 0)
+ {
+ DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
+ return NULL;
+ }
+
+ return acl;
+}
+
+static BOOL gpfs_get_nfs4_acl(struct files_struct *fsp, SMB4ACL_T **ppacl, BOOL *pretryPosix)
+{
+ TALLOC_CTX *mem_ctx;
+ int i;
+ struct gpfs_acl *gacl = NULL;
+
+ mem_ctx = main_loop_talloc_get();
+
+ DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fsp->fsp_name));
+
+ /* First get the real acl length */
+ gacl = gpfs_getacl_alloc(fsp->fsp_name, GPFS_ACL_TYPE_NFS4);
+ if (gacl == NULL) {
+ DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
+ fsp->fsp_name, strerror(errno)));
+ return False;
+ }
+
+ if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
+ DEBUG(10, ("Got non-nfsv4 acl\n"));
+ *pretryPosix = True;
+ return False;
+ }
+
+ *ppacl = smb_create_smb4acl();
+
+ DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
+ gacl->acl_len, gacl->acl_level, gacl->acl_version,
+ gacl->acl_nace));
+
+ for (i=0; i<gacl->acl_nace; i++) {
+ struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
+ SMB_ACE4PROP_T smbace;
+ memset(&smbace, 0, sizeof(SMB4ACE_T));
+
+ DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
+ "who: %d\n", gace->aceType, gace->aceIFlags,
+ gace->aceFlags, gace->aceMask, gace->aceWho));
+
+ if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
+ smbace.flags |= SMB_ACE4_ID_SPECIAL;
+ switch (gace->aceWho) {
+ case ACE4_SPECIAL_OWNER:
+ smbace.who.special_id = SMB_ACE4_WHO_OWNER;
+ break;
+ case ACE4_SPECIAL_GROUP:
+ smbace.who.special_id = SMB_ACE4_WHO_GROUP;
+ break;
+ case ACE4_SPECIAL_EVERYONE:
+ smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
+ break;
+ default:
+ DEBUG(8, ("invalid special gpfs id %d "
+ "ignored\n", gace->aceWho));
+ continue; /* don't add it */
+ }
+ } else {
+ if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
+ smbace.who.gid = gace->aceWho;
+ else
+ smbace.who.uid = gace->aceWho;
+ }
+
+ smbace.aceType = gace->aceType;
+ smbace.aceFlags = gace->aceFlags;
+ smbace.aceMask = gace->aceMask;
+ smbace.flags = (gace->aceIFlags&ACE4_IFLAG_SPECIAL_ID) ? SMB_ACE4_ID_SPECIAL : 0;
+
+ smb_add_ace4(*ppacl, &smbace);
+ }
+
+ return True;
+}
+
+static size_t gpfsacl_get_nt_acl_common(files_struct *fsp,
+ uint32 security_info, SEC_DESC **ppdesc)
+{
+ SMB4ACL_T *pacl = NULL;
+ BOOL result;
+ BOOL retryPosix = False;
+
+ *ppdesc = NULL;
+ result = gpfs_get_nfs4_acl(fsp, &pacl, &retryPosix);
+ if (retryPosix)
+ {
+ DEBUG(10, ("retrying with posix acl...\n"));
+ return get_nt_acl(fsp, security_info, ppdesc);
+ }
+ if (result==False)
+ return 0;
+
+ return smb_get_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
+}
+
+size_t gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
+ files_struct *fsp, int fd, uint32 security_info,
+ SEC_DESC **ppdesc)
+{
+ return gpfsacl_get_nt_acl_common(fsp, security_info, ppdesc);
+}
+
+size_t gpfsacl_get_nt_acl(vfs_handle_struct *handle,
+ files_struct *fsp, const char *name,
+ uint32 security_info, SEC_DESC **ppdesc)
+{
+ return gpfsacl_get_nt_acl_common(fsp, security_info, ppdesc);
+}
+
+static BOOL gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
+{
+ int ret;
+ gpfs_aclLen_t gacl_len;
+ SMB4ACE_T *smbace;
+ struct gpfs_acl *gacl;
+ TALLOC_CTX *mem_ctx = main_loop_talloc_get();
+
+ gacl_len = sizeof(struct gpfs_acl) +
+ (smb_get_naces(smbacl)-1)*sizeof(gpfs_ace_v4_t);
+
+ gacl = talloc_size(mem_ctx, gacl_len);
+ if (gacl == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ errno = ENOMEM;
+ return False;
+ }
+
+ gacl->acl_len = gacl_len;
+ gacl->acl_level = 0;
+ gacl->acl_version = GPFS_ACL_VERSION_NFS4;
+ gacl->acl_type = GPFS_ACL_TYPE_NFS4;
+ gacl->acl_nace = 0; /* change later... */
+
+ for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
+ struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
+ SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
+
+ gace->aceType = aceprop->aceType;
+ gace->aceFlags = aceprop->aceFlags;
+ gace->aceMask = aceprop->aceMask;
+ gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
+
+ if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
+ {
+ switch(aceprop->who.special_id)
+ {
+ case SMB_ACE4_WHO_EVERYONE:
+ gace->aceWho = ACE4_SPECIAL_EVERYONE;
+ break;
+ case SMB_ACE4_WHO_OWNER:
+ gace->aceWho = ACE4_SPECIAL_OWNER;
+ break;
+ case SMB_ACE4_WHO_GROUP:
+ gace->aceWho = ACE4_SPECIAL_GROUP;
+ break;
+ default:
+ DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
+ continue; /* don't add it !!! */
+ }
+ } else {
+ /* just only for the type safety... */
+ if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
+ gace->aceWho = aceprop->who.gid;
+ else
+ gace->aceWho = aceprop->who.uid;
+ }
+
+ gacl->acl_nace++;
+ }
+
+ ret = smbd_gpfs_putacl(fsp->fsp_name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
+ if (ret != 0) {
+ DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
+ gpfs_dumpacl(8, gacl);
+ return False;
+ }
+
+ DEBUG(10, ("gpfs_putacl succeeded\n"));
+ return True;
+}
+
+static BOOL gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
+{
+ struct gpfs_acl *acl;
+ BOOL result = False;
+
+ acl = gpfs_getacl_alloc(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
+ if (acl == NULL)
+ return False;
+
+ if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
+ {
+ result = smb_set_nt_acl_nfs4(
+ fsp, security_info_sent, psd,
+ gpfsacl_process_smbacl);
+ } else { /* assume POSIX ACL - by default... */
+ result = set_nt_acl(fsp, security_info_sent, psd);
+ }
+
+ return result;
+}
+
+static BOOL gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, int fd, uint32 security_info_sent, SEC_DESC *psd)
+{
+ return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
+}
+
+static BOOL gpfsacl_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, char *name, uint32 security_info_sent, SEC_DESC *psd)
+{
+ return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
+}
+
+static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
+{
+ SMB_ACL_T result;
+ int i;
+
+ result = sys_acl_init(pacl->acl_nace);
+ if (result == NULL) {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ result->count = pacl->acl_nace;
+
+ for (i=0; i<pacl->acl_nace; i++) {
+ struct smb_acl_entry *ace = &result->acl[i];
+ const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
+
+ DEBUG(10, ("Converting type %d id %lu perm %x\n",
+ (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
+ (int)g_ace->ace_perm));
+
+ switch (g_ace->ace_type) {
+ case GPFS_ACL_USER:
+ ace->a_type = SMB_ACL_USER;
+ ace->uid = (uid_t)g_ace->ace_who;
+ break;
+ case GPFS_ACL_USER_OBJ:
+ ace->a_type = SMB_ACL_USER_OBJ;
+ break;
+ case GPFS_ACL_GROUP:
+ ace->a_type = SMB_ACL_GROUP;
+ ace->gid = (gid_t)g_ace->ace_who;
+ break;
+ case GPFS_ACL_GROUP_OBJ:
+ ace->a_type = SMB_ACL_GROUP_OBJ;
+ break;
+ case GPFS_ACL_OTHER:
+ ace->a_type = SMB_ACL_OTHER;
+ break;
+ case GPFS_ACL_MASK:
+ ace->a_type = SMB_ACL_MASK;
+ break;
+ default:
+ DEBUG(10, ("Got invalid ace_type: %d\n",
+ g_ace->ace_type));
+ errno = EINVAL;
+ SAFE_FREE(result);
+ return NULL;
+ }
+
+ ace->a_perm = 0;
+ ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
+ SMB_ACL_READ : 0;
+ ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
+ SMB_ACL_WRITE : 0;
+ ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
+ SMB_ACL_EXECUTE : 0;
+
+ DEBUGADD(10, ("Converted to %d perm %x\n",
+ ace->a_type, ace->a_perm));
+ }
+
+ return result;
+}
+
+static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
+{
+ struct gpfs_acl *pacl;
+ SMB_ACL_T result = NULL;
+
+ pacl = gpfs_getacl_alloc(path, type);
+
+ if (pacl == NULL) {
+ DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
+ path, strerror(errno)));
+ if (errno == 0) {
+ errno = EINVAL;
+ }
+ goto done;
+ }
+
+ if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
+ DEBUG(10, ("Got acl version %d, expected %d\n",
+ pacl->acl_version, GPFS_ACL_VERSION_POSIX));
+ errno = EINVAL;
+ goto done;
+ }
+
+ DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
+ pacl->acl_len, pacl->acl_level, pacl->acl_version,
+ pacl->acl_nace));
+
+ result = gpfs2smb_acl(pacl);
+ if (result == NULL) {
+ goto done;
+ }
+
+ done:
+
+ if (errno != 0) {
+ SAFE_FREE(result);
+ }
+ return result;
+}
+
+SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
+
+ const char *path_p,
+ SMB_ACL_TYPE_T type)
+{
+ gpfs_aclType_t gpfs_type;
+
+ switch(type) {
+ case SMB_ACL_TYPE_ACCESS:
+ gpfs_type = GPFS_ACL_TYPE_ACCESS;
+ break;
+ case SMB_ACL_TYPE_DEFAULT:
+ gpfs_type = GPFS_ACL_TYPE_DEFAULT;
+ break;
+ default:
+ DEBUG(0, ("Got invalid type: %d\n", type));
+ smb_panic("exiting");
+ }
+
+ return gpfsacl_get_posix_acl(path_p, gpfs_type);
+}
+
+SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
+ files_struct *fsp,
+ int fd)
+{
+ return gpfsacl_get_posix_acl(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
+}
+
+static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
+ SMB_ACL_TYPE_T type)
+{
+ gpfs_aclLen_t len;
+ struct gpfs_acl *result;
+ int i;
+ union gpfs_ace_union
+ {
+ gpfs_ace_v1_t ace_v1[1]; /* when GPFS_ACL_VERSION_POSIX */
+ gpfs_ace_v4_t ace_v4[1]; /* when GPFS_ACL_VERSION_NFS4 */
+ };
+
+ DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
+
+ len = sizeof(struct gpfs_acl) - sizeof(union gpfs_ace_union) +
+ (pacl->count)*sizeof(gpfs_ace_v1_t);
+
+ result = SMB_MALLOC(len);
+ if (result == NULL) {
+ errno = ENOMEM;
+ return result;
+ }
+
+ result->acl_len = len;
+ result->acl_level = 0;
+ result->acl_version = GPFS_ACL_VERSION_POSIX;
+ result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
+ GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
+ result->acl_nace = pacl->count;
+
+ for (i=0; i<pacl->count; i++) {
+ const struct smb_acl_entry *ace = &pacl->acl[i];
+ struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
+
+ DEBUG(10, ("Converting type %d perm %x\n",
+ (int)ace->a_type, (int)ace->a_perm));
+
+ g_ace->ace_perm = 0;
+
+ switch(ace->a_type) {
+ case SMB_ACL_USER:
+ g_ace->ace_type = GPFS_ACL_USER;
+ g_ace->ace_who = (gpfs_uid_t)ace->uid;
+ break;
+ case SMB_ACL_USER_OBJ:
+ g_ace->ace_type = GPFS_ACL_USER_OBJ;
+ g_ace->ace_perm |= ACL_PERM_CONTROL;
+ g_ace->ace_who = 0;
+ break;
+ case SMB_ACL_GROUP:
+ g_ace->ace_type = GPFS_ACL_GROUP;
+ g_ace->ace_who = (gpfs_uid_t)ace->gid;
+ break;
+ case SMB_ACL_GROUP_OBJ:
+ g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
+ g_ace->ace_who = 0;
+ break;
+ case SMB_ACL_MASK:
+ g_ace->ace_type = GPFS_ACL_MASK;
+ g_ace->ace_perm = 0x8f;
+ g_ace->ace_who = 0;
+ break;
+ case SMB_ACL_OTHER:
+ g_ace->ace_type = GPFS_ACL_OTHER;
+ g_ace->ace_who = 0;
+ break;
+ default:
+ DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
+ errno = EINVAL;
+ SAFE_FREE(result);
+ return NULL;
+ }
+
+ g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
+ ACL_PERM_READ : 0;
+ g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
+ ACL_PERM_WRITE : 0;
+ g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
+ ACL_PERM_EXECUTE : 0;
+
+ DEBUGADD(10, ("Converted to %d id %d perm %x\n",
+ g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
+ }
+
+ return result;
+}
+
+int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
+
+ const char *name,
+ SMB_ACL_TYPE_T type,
+ SMB_ACL_T theacl)
+{
+ struct gpfs_acl *gpfs_acl;
+ int result;
+
+ gpfs_acl = smb2gpfs_acl(theacl, type);
+ if (gpfs_acl == NULL) {
+ return -1;
+ }
+
+ result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
+
+ SAFE_FREE(gpfs_acl);
+ return result;
+}
+
+int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
+ files_struct *fsp,
+ int fd, SMB_ACL_T theacl)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
+
+ const char *path)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+/* VFS operations structure */
static vfs_op_tuple gpfs_op_tuples[] = {
SMB_VFS_OP_KERNEL_FLOCK,
SMB_VFS_LAYER_OPAQUE},
+ {SMB_VFS_OP(gpfsacl_fget_nt_acl),
+ SMB_VFS_OP_FGET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_get_nt_acl),
+ SMB_VFS_OP_GET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_fset_nt_acl),
+ SMB_VFS_OP_FSET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_set_nt_acl),
+ SMB_VFS_OP_SET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_sys_acl_get_file),
+ SMB_VFS_OP_SYS_ACL_GET_FILE,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_sys_acl_get_fd),
+ SMB_VFS_OP_SYS_ACL_GET_FD,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_sys_acl_set_file),
+ SMB_VFS_OP_SYS_ACL_SET_FILE,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_sys_acl_set_fd),
+ SMB_VFS_OP_SYS_ACL_SET_FD,
+ SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
+ SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
+ SMB_VFS_LAYER_TRANSPARENT},
+
{SMB_VFS_OP(NULL),
SMB_VFS_OP_NOOP,
SMB_VFS_LAYER_NOOP}
git.samba.org / jerry / samba.git / commitdiff