/*
   Unix SMB/CIFS implementation.
   ACL get/set utility

   Copyright (C) Andrew Tridgell 2000
   Copyright (C) Tim Potter      2000
   Copyright (C) Jeremy Allison  2000
   Copyright (C) Jelmer Vernooij 2003

   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 "popt_common.h"
#include "rpc_client/cli_pipe.h"
#include "../librpc/gen_ndr/ndr_lsa.h"
#include "rpc_client/cli_lsarpc.h"
#include "../libcli/security/security.h"
#include "libsmb/libsmb.h"
#include "libsmb/clirap.h"
#include "passdb/machine_sid.h"
#include "../librpc/gen_ndr/ndr_lsa_c.h"
#include "util_sd.h"

static int test_args;

#define CREATE_ACCESS_READ READ_CONTROL_ACCESS

static int sddl;
static int query_sec_info = -1;
static int set_sec_info = -1;

static const char *domain_sid = NULL;

enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP, REQUEST_INHERIT};
enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};

static NTSTATUS cli_lsa_lookup_domain_sid(struct cli_state *cli,
					  struct dom_sid *sid)
{
	union lsa_PolicyInformation *info = NULL;
	struct smbXcli_tcon *orig_tcon = NULL;
	struct rpc_pipe_client *rpc_pipe = NULL;
	struct policy_handle handle;
	NTSTATUS status, result;
	TALLOC_CTX *frame = talloc_stackframe();

	if (cli_state_has_tcon(cli)) {
		orig_tcon = cli_state_save_tcon(cli);
		if (orig_tcon == NULL) {
			status = NT_STATUS_NO_MEMORY;
			goto done;
		}
	}

	status = cli_tree_connect(cli, "IPC$", "?????", NULL);
	if (!NT_STATUS_IS_OK(status)) {
		goto done;
	}

	status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc, &rpc_pipe);
	if (!NT_STATUS_IS_OK(status)) {
		goto tdis;
	}

	status = rpccli_lsa_open_policy(rpc_pipe, frame, True,
					GENERIC_EXECUTE_ACCESS, &handle);
	if (!NT_STATUS_IS_OK(status)) {
		goto tdis;
	}

	status = dcerpc_lsa_QueryInfoPolicy2(rpc_pipe->binding_handle,
					     frame, &handle,
					     LSA_POLICY_INFO_DOMAIN,
					     &info, &result);

	if (any_nt_status_not_ok(status, result, &status)) {
		goto tdis;
	}

	*sid = *info->domain.sid;

tdis:
	TALLOC_FREE(rpc_pipe);
	cli_tdis(cli);
done:
	cli_state_restore_tcon(cli, orig_tcon);
	TALLOC_FREE(frame);
	return status;
}

static struct dom_sid *get_domain_sid(struct cli_state *cli)
{
	NTSTATUS status;

	struct dom_sid *sid = talloc(talloc_tos(), struct dom_sid);
	if (sid == NULL) {
		DEBUG(0, ("Out of memory\n"));
		return NULL;
	}

	if (domain_sid) {
		if (!dom_sid_parse(domain_sid, sid)) {
			DEBUG(0,("failed to parse domain sid\n"));
			TALLOC_FREE(sid);
		}
	} else {
		status = cli_lsa_lookup_domain_sid(cli, sid);

		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(0,("failed to lookup domain sid: %s\n", nt_errstr(status)));
			TALLOC_FREE(sid);
		}

	}

	DEBUG(2,("Domain SID: %s\n", sid_string_dbg(sid)));
	return sid;
}

/* add an ACE to a list of ACEs in a struct security_acl */
static bool add_ace(struct security_acl **the_acl, struct security_ace *ace)
{
	struct security_acl *new_ace;
	struct security_ace *aces;
	if (! *the_acl) {
		return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
			!= NULL);
	}

	if (!(aces = SMB_CALLOC_ARRAY(struct security_ace, 1+(*the_acl)->num_aces))) {
		return False;
	}
	memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(struct
	security_ace));
	memcpy(aces+(*the_acl)->num_aces, ace, sizeof(struct security_ace));
	new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
	SAFE_FREE(aces);
	(*the_acl) = new_ace;
	return True;
}

/* parse a ascii version of a security descriptor */
static struct security_descriptor *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
{
	const char *p = str;
	char *tok;
	struct security_descriptor *ret = NULL;
	size_t sd_size;
	struct dom_sid *grp_sid=NULL, *owner_sid=NULL;
	struct security_acl *dacl=NULL;
	int revision=1;

	while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
		if (strncmp(tok,"REVISION:", 9) == 0) {
			revision = strtol(tok+9, NULL, 16);
			continue;
		}

		if (strncmp(tok,"OWNER:", 6) == 0) {
			if (owner_sid) {
				printf("Only specify owner once\n");
				goto done;
			}
			owner_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
			if (!owner_sid ||
			    !StringToSid(cli, owner_sid, tok+6)) {
				printf("Failed to parse owner sid\n");
				goto done;
			}
			continue;
		}

		if (strncmp(tok,"GROUP:", 6) == 0) {
			if (grp_sid) {
				printf("Only specify group once\n");
				goto done;
			}
			grp_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
			if (!grp_sid ||
			    !StringToSid(cli, grp_sid, tok+6)) {
				printf("Failed to parse group sid\n");
				goto done;
			}
			continue;
		}

		if (strncmp(tok,"ACL:", 4) == 0) {
			struct security_ace ace;
			if (!parse_ace(cli, &ace, tok+4)) {
				goto done;
			}
			if(!add_ace(&dacl, &ace)) {
				printf("Failed to add ACL %s\n", tok);
				goto done;
			}
			continue;
		}

		printf("Failed to parse token '%s' in security descriptor,\n", tok);
		goto done;
	}

	ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
			    NULL, dacl, &sd_size);

  done:
	SAFE_FREE(grp_sid);
	SAFE_FREE(owner_sid);

	return ret;
}

/*****************************************************
get fileinfo for filename
*******************************************************/
static uint16_t get_fileinfo(struct cli_state *cli, const char *filename)
{
	uint16_t fnum = (uint16_t)-1;
	NTSTATUS status;
	struct smb_create_returns cr = {0};

	/* The desired access below is the only one I could find that works
	   with NT4, W2KP and Samba */

	status = cli_ntcreate(cli, filename, 0, CREATE_ACCESS_READ,
			      0, FILE_SHARE_READ|FILE_SHARE_WRITE,
			      FILE_OPEN, 0x0, 0x0, &fnum, &cr);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to open %s: %s\n", filename, nt_errstr(status));
		return 0;
	}

	cli_close(cli, fnum);
	return cr.file_attributes;
}

/*****************************************************
get sec desc for filename
*******************************************************/
static struct security_descriptor *get_secdesc(struct cli_state *cli, const char *filename)
{
	uint16_t fnum = (uint16_t)-1;
	struct security_descriptor *sd;
	NTSTATUS status;
	uint32_t sec_info;
	uint32_t desired_access = 0;

	if (query_sec_info == -1) {
		sec_info = SECINFO_OWNER | SECINFO_GROUP | SECINFO_DACL;
	} else {
		sec_info = query_sec_info;
	}

	if (sec_info & (SECINFO_OWNER | SECINFO_GROUP | SECINFO_DACL)) {
		desired_access |= SEC_STD_READ_CONTROL;
	}
	if (sec_info & SECINFO_SACL) {
		desired_access |= SEC_FLAG_SYSTEM_SECURITY;
	}

	if (desired_access == 0) {
		desired_access |= SEC_STD_READ_CONTROL;
	}

	status = cli_ntcreate(cli, filename, 0, desired_access,
			      0, FILE_SHARE_READ|FILE_SHARE_WRITE,
			      FILE_OPEN, 0x0, 0x0, &fnum, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to open %s: %s\n", filename, nt_errstr(status));
		return NULL;
	}

	status = cli_query_security_descriptor(cli, fnum, sec_info,
					       talloc_tos(), &sd);

	cli_close(cli, fnum);

	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to get security descriptor: %s\n",
		       nt_errstr(status));
		return NULL;
	}
        return sd;
}

/*****************************************************
set sec desc for filename
*******************************************************/
static bool set_secdesc(struct cli_state *cli, const char *filename,
                        struct security_descriptor *sd)
{
	uint16_t fnum = (uint16_t)-1;
        bool result=true;
	NTSTATUS status;
	uint32_t desired_access = 0;
	uint32_t sec_info;

	if (set_sec_info == -1) {
		sec_info = 0;

		if (sd->dacl || (sd->type & SEC_DESC_DACL_PRESENT)) {
			sec_info |= SECINFO_DACL;
		}
		if (sd->sacl || (sd->type & SEC_DESC_SACL_PRESENT)) {
			sec_info |= SECINFO_SACL;
		}
		if (sd->owner_sid) {
			sec_info |= SECINFO_OWNER;
		}
		if (sd->group_sid) {
			sec_info |= SECINFO_GROUP;
		}
	} else {
		sec_info = set_sec_info;
	}

	/* Make the desired_access more specific. */
	if (sec_info & SECINFO_DACL) {
		desired_access |= SEC_STD_WRITE_DAC;
	}
	if (sec_info & SECINFO_SACL) {
		desired_access |= SEC_FLAG_SYSTEM_SECURITY;
	}
	if (sec_info & (SECINFO_OWNER | SECINFO_GROUP)) {
		desired_access |= SEC_STD_WRITE_OWNER;
	}

	status = cli_ntcreate(cli, filename, 0,
			      desired_access,
			      0, FILE_SHARE_READ|FILE_SHARE_WRITE,
			      FILE_OPEN, 0x0, 0x0, &fnum, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to open %s: %s\n", filename, nt_errstr(status));
		return false;
	}

	status = cli_set_security_descriptor(cli, fnum, sec_info, sd);
	if (!NT_STATUS_IS_OK(status)) {
		printf("ERROR: security descriptor set failed: %s\n",
                       nt_errstr(status));
		result=false;
	}

	cli_close(cli, fnum);
	return result;
}

/*****************************************************
dump the acls for a file
*******************************************************/
static int cacl_dump(struct cli_state *cli, const char *filename, bool numeric)
{
	struct security_descriptor *sd;

	if (test_args) {
		return EXIT_OK;
	}

	sd = get_secdesc(cli, filename);
	if (sd == NULL) {
		return EXIT_FAILED;
	}

	if (sddl) {
		char *str = sddl_encode(talloc_tos(), sd, get_domain_sid(cli));
		if (str == NULL) {
			return EXIT_FAILED;
		}
		printf("%s\n", str);
		TALLOC_FREE(str);
	} else {
		sec_desc_print(cli, stdout, sd, numeric);
	}

	return EXIT_OK;
}

/***************************************************** 
Change the ownership or group ownership of a file. Just
because the NT docs say this can't be done :-). JRA.
*******************************************************/

static int owner_set(struct cli_state *cli, enum chown_mode change_mode, 
			const char *filename, const char *new_username)
{
	struct dom_sid sid;
	struct security_descriptor *sd;
	size_t sd_size;

	if (!StringToSid(cli, &sid, new_username))
		return EXIT_PARSE_ERROR;

	sd = make_sec_desc(talloc_tos(),
			   SECURITY_DESCRIPTOR_REVISION_1,
			   SEC_DESC_SELF_RELATIVE,
			   (change_mode == REQUEST_CHOWN) ? &sid : NULL,
			   (change_mode == REQUEST_CHGRP) ? &sid : NULL,
			   NULL, NULL, &sd_size);

	if (!set_secdesc(cli, filename, sd)) {
		return EXIT_FAILED;
	}

	return EXIT_OK;
}


/* The MSDN is contradictory over the ordering of ACE entries in an
   ACL.  However NT4 gives a "The information may have been modified
   by a computer running Windows NT 5.0" if denied ACEs do not appear
   before allowed ACEs. At
   http://technet.microsoft.com/en-us/library/cc781716.aspx the
   canonical order is specified as "Explicit Deny, Explicit Allow,
   Inherited ACEs unchanged" */

static int ace_compare(struct security_ace *ace1, struct security_ace *ace2)
{
	if (security_ace_equal(ace1, ace2))
		return 0;

	if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
			!(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
		return 1;
	if (!(ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
			(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
		return -1;
	if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
			(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
		return ace1 - ace2;

	if (ace1->type != ace2->type)
		return ace2->type - ace1->type;

	if (dom_sid_compare(&ace1->trustee, &ace2->trustee))
		return dom_sid_compare(&ace1->trustee, &ace2->trustee);

	if (ace1->flags != ace2->flags)
		return ace1->flags - ace2->flags;

	if (ace1->access_mask != ace2->access_mask)
		return ace1->access_mask - ace2->access_mask;

	if (ace1->size != ace2->size)
		return ace1->size - ace2->size;

	return memcmp(ace1, ace2, sizeof(struct security_ace));
}

static void sort_acl(struct security_acl *the_acl)
{
	uint32_t i;
	if (!the_acl) return;

	TYPESAFE_QSORT(the_acl->aces, the_acl->num_aces, ace_compare);

	for (i=1;i<the_acl->num_aces;) {
		if (security_ace_equal(&the_acl->aces[i-1],
				       &the_acl->aces[i])) {
			int j;
			for (j=i; j<the_acl->num_aces-1; j++) {
				the_acl->aces[j] = the_acl->aces[j+1];
			}
			the_acl->num_aces--;
		} else {
			i++;
		}
	}
}

/***************************************************** 
set the ACLs on a file given an ascii description
*******************************************************/

static int cacl_set(struct cli_state *cli, const char *filename,
		    char *the_acl, enum acl_mode mode, bool numeric)
{
	struct security_descriptor *sd, *old;
	uint32_t i, j;
	size_t sd_size;
	int result = EXIT_OK;

	if (sddl) {
		sd = sddl_decode(talloc_tos(), the_acl, get_domain_sid(cli));
	} else {
		sd = sec_desc_parse(talloc_tos(), cli, the_acl);
	}

	if (!sd) return EXIT_PARSE_ERROR;
	if (test_args) return EXIT_OK;

	if (mode != SMB_ACL_SET) {
		/*
		 * Do not fetch old ACL when it will be overwritten
		 * completely with a new one.
		 */
		old = get_secdesc(cli, filename);

		if (!old) {
			return EXIT_FAILED;
		}
	}

	/* the logic here is rather more complex than I would like */
	switch (mode) {
	case SMB_ACL_DELETE:
		for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
			bool found = False;

			for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
				if (security_ace_equal(&sd->dacl->aces[i],
						       &old->dacl->aces[j])) {
					uint32_t k;
					for (k=j; k<old->dacl->num_aces-1;k++) {
						old->dacl->aces[k] = old->dacl->aces[k+1];
					}
					old->dacl->num_aces--;
					found = True;
					break;
				}
			}

			if (!found) {
				printf("ACL for ACE:");
				print_ace(cli, stdout, &sd->dacl->aces[i],
					  numeric);
				printf(" not found\n");
			}
		}
		break;

	case SMB_ACL_MODIFY:
		for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
			bool found = False;

			for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
				if (dom_sid_equal(&sd->dacl->aces[i].trustee,
					      &old->dacl->aces[j].trustee)) {
					old->dacl->aces[j] = sd->dacl->aces[i];
					found = True;
				}
			}

			if (!found) {
				fstring str;

				SidToString(cli, str,
					    &sd->dacl->aces[i].trustee,
					    numeric);
				printf("ACL for SID %s not found\n", str);
			}
		}

		if (sd->owner_sid) {
			old->owner_sid = sd->owner_sid;
		}

		if (sd->group_sid) {
			old->group_sid = sd->group_sid;
		}

		break;

	case SMB_ACL_ADD:
		for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
			add_ace(&old->dacl, &sd->dacl->aces[i]);
		}
		break;

	case SMB_ACL_SET:
 		old = sd;
		break;
	}

	/* Denied ACE entries must come before allowed ones */
	sort_acl(old->dacl);

	/* Create new security descriptor and set it */

	/* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
	   But if we're sending an owner, even if it's the same as the one
	   that already exists then W2K3 insists we open with WRITE_OWNER access.
	   I need to check that setting a SD with no owner set works against WNT
	   and W2K. JRA.
	*/

	sd = make_sec_desc(talloc_tos(),old->revision, old->type,
			   old->owner_sid, old->group_sid,
			   NULL, old->dacl, &sd_size);

	if (!set_secdesc(cli, filename, sd)) {
		result = EXIT_FAILED;
	}

	return result;
}

/*****************************************************
set the inherit on a file
*******************************************************/
static int inherit(struct cli_state *cli, const char *filename,
                   const char *type)
{
	struct security_descriptor *old,*sd;
	uint32_t oldattr;
	size_t sd_size;
	int result = EXIT_OK;

	old = get_secdesc(cli, filename);

	if (!old) {
		return EXIT_FAILED;
	}

        oldattr = get_fileinfo(cli,filename);

	if (strcmp(type,"allow")==0) {
		if ((old->type & SEC_DESC_DACL_PROTECTED) ==
                    SEC_DESC_DACL_PROTECTED) {
			int i;
			char *parentname,*temp;
			struct security_descriptor *parent;
			temp = talloc_strdup(talloc_tos(), filename);

			old->type=old->type & (~SEC_DESC_DACL_PROTECTED);

			/* look at parent and copy in all its inheritable ACL's. */
			string_replace(temp, '\\', '/');
			if (!parent_dirname(talloc_tos(),temp,&parentname,NULL)) {
				return EXIT_FAILED;
			}
			string_replace(parentname, '/', '\\');
			parent = get_secdesc(cli,parentname);
			if (parent == NULL) {
				return EXIT_FAILED;
			}
			for (i=0;i<parent->dacl->num_aces;i++) {
				struct security_ace *ace=&parent->dacl->aces[i];
				/* Add inherited flag to all aces */
				ace->flags=ace->flags|
				           SEC_ACE_FLAG_INHERITED_ACE;
				if ((oldattr & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY) {
					if ((ace->flags & SEC_ACE_FLAG_CONTAINER_INHERIT) ==
					    SEC_ACE_FLAG_CONTAINER_INHERIT) {
						add_ace(&old->dacl, ace);
					}
				} else {
					if ((ace->flags & SEC_ACE_FLAG_OBJECT_INHERIT) ==
					    SEC_ACE_FLAG_OBJECT_INHERIT) {
						/* clear flags for files */
						ace->flags=0;
						add_ace(&old->dacl, ace);
					}
				}
			}
                } else {
			printf("Already set to inheritable permissions.\n");
			return EXIT_FAILED;
                }
	} else if (strcmp(type,"remove")==0) {
		if ((old->type & SEC_DESC_DACL_PROTECTED) !=
                    SEC_DESC_DACL_PROTECTED) {
			old->type=old->type | SEC_DESC_DACL_PROTECTED;

			/* remove all inherited ACL's. */
			if (old->dacl) {
				int i;
				struct security_acl *temp=old->dacl;
				old->dacl=make_sec_acl(talloc_tos(), 3, 0, NULL);
				for (i=temp->num_aces-1;i>=0;i--) {
					struct security_ace *ace=&temp->aces[i];
					/* Remove all ace with INHERITED flag set */
					if ((ace->flags & SEC_ACE_FLAG_INHERITED_ACE) !=
					    SEC_ACE_FLAG_INHERITED_ACE) {
						add_ace(&old->dacl,ace);
					}
				}
			}
                } else {
			printf("Already set to no inheritable permissions.\n");
			return EXIT_FAILED;
                }
	} else if (strcmp(type,"copy")==0) {
		if ((old->type & SEC_DESC_DACL_PROTECTED) !=
                    SEC_DESC_DACL_PROTECTED) {
			old->type=old->type | SEC_DESC_DACL_PROTECTED;

			/* convert all inherited ACL's to non inherated ACL's. */
			if (old->dacl) {
				int i;
				for (i=0;i<old->dacl->num_aces;i++) {
					struct security_ace *ace=&old->dacl->aces[i];
					/* Remove INHERITED FLAG from all aces */
					ace->flags=ace->flags&(~SEC_ACE_FLAG_INHERITED_ACE);
				}
			}
                } else {
			printf("Already set to no inheritable permissions.\n");
			return EXIT_FAILED;
                }
	}

	/* Denied ACE entries must come before allowed ones */
	sort_acl(old->dacl);

	sd = make_sec_desc(talloc_tos(),old->revision, old->type,
			   old->owner_sid, old->group_sid,
			   NULL, old->dacl, &sd_size);

	if (!set_secdesc(cli, filename, sd)) {
		result = EXIT_FAILED;
	}

	return result;
}

/*****************************************************
 Return a connection to a server.
*******************************************************/
static struct cli_state *connect_one(const struct user_auth_info *auth_info,
				     const char *server, const char *share)
{
	struct cli_state *c = NULL;
	NTSTATUS nt_status;
	uint32_t flags = 0;

	if (get_cmdline_auth_info_use_kerberos(auth_info)) {
		flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
			 CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
	}

	nt_status = cli_full_connection(&c, lp_netbios_name(), server,
				NULL, 0,
				share, "?????",
				get_cmdline_auth_info_username(auth_info),
				lp_workgroup(),
				get_cmdline_auth_info_password(auth_info),
				flags,
				get_cmdline_auth_info_signing_state(auth_info));
	if (!NT_STATUS_IS_OK(nt_status)) {
		DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
		return NULL;
	}

	if (get_cmdline_auth_info_smb_encrypt(auth_info)) {
		nt_status = cli_cm_force_encryption(c,
					get_cmdline_auth_info_username(auth_info),
					get_cmdline_auth_info_password(auth_info),
					lp_workgroup(),
					share);
                if (!NT_STATUS_IS_OK(nt_status)) {
			cli_shutdown(c);
			c = NULL;
                }
	}

	return c;
}

/****************************************************************************
  main program
****************************************************************************/
int main(int argc, char *argv[])
{
	const char **argv_const = discard_const_p(const char *, argv);
	char *share;
	int opt;
	enum acl_mode mode = SMB_ACL_SET;
	static char *the_acl = NULL;
	enum chown_mode change_mode = REQUEST_NONE;
	int result;
	char *path;
	char *filename = NULL;
	poptContext pc;
	/* numeric is set when the user wants numeric SIDs and ACEs rather
	   than going via LSA calls to resolve them */
	int numeric = 0;

	struct poptOption long_options[] = {
		POPT_AUTOHELP
		{ "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
		{ "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
		{ "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
		{ "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
		{ "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
		{ "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
		{ "inherit", 'I', POPT_ARG_STRING, NULL, 'I', "Inherit allow|remove|copy" },
		{ "numeric", 0, POPT_ARG_NONE, &numeric, 1, "Don't resolve sids or masks to names" },
		{ "sddl", 0, POPT_ARG_NONE, &sddl, 1, "Output and input acls in sddl format" },
		{ "query-security-info", 0, POPT_ARG_INT, &query_sec_info, 1,
		  "The security-info flags for queries"
		},
		{ "set-security-info", 0, POPT_ARG_INT, &set_sec_info, 1,
		  "The security-info flags for modifications"
		},
		{ "test-args", 't', POPT_ARG_NONE, &test_args, 1, "Test arguments"},
		{ "domain-sid", 0, POPT_ARG_STRING, &domain_sid, 0, "Domain SID for sddl", "SID"},
		{ "max-protocol", 'm', POPT_ARG_STRING, NULL, 'm', "Set the max protocol level", "LEVEL" },
		POPT_COMMON_SAMBA
		POPT_COMMON_CONNECTION
		POPT_COMMON_CREDENTIALS
		POPT_TABLEEND
	};

	struct cli_state *cli;
	TALLOC_CTX *frame = talloc_stackframe();
	const char *owner_username = "";
	char *server;

	smb_init_locale();

	/* set default debug level to 1 regardless of what smb.conf sets */
	setup_logging( "smbcacls", DEBUG_STDERR);
	lp_set_cmdline("log level", "1");

	setlinebuf(stdout);

	popt_common_credentials_set_ignore_missing_conf();

	pc = poptGetContext("smbcacls", argc, argv_const, long_options, 0);

	poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
		"'ACL:user:[ALLOWED|DENIED]/flags/permissions'");

	while ((opt = poptGetNextOpt(pc)) != -1) {
		switch (opt) {
		case 'S':
			the_acl = smb_xstrdup(poptGetOptArg(pc));
			mode = SMB_ACL_SET;
			break;

		case 'D':
			the_acl = smb_xstrdup(poptGetOptArg(pc));
			mode = SMB_ACL_DELETE;
			break;

		case 'M':
			the_acl = smb_xstrdup(poptGetOptArg(pc));
			mode = SMB_ACL_MODIFY;
			break;

		case 'a':
			the_acl = smb_xstrdup(poptGetOptArg(pc));
			mode = SMB_ACL_ADD;
			break;

		case 'C':
			owner_username = poptGetOptArg(pc);
			change_mode = REQUEST_CHOWN;
			break;

		case 'G':
			owner_username = poptGetOptArg(pc);
			change_mode = REQUEST_CHGRP;
			break;

		case 'I':
			owner_username = poptGetOptArg(pc);
			change_mode = REQUEST_INHERIT;
			break;
		case 'm':
			lp_set_cmdline("client max protocol", poptGetOptArg(pc));
			break;
		}
	}

	/* Make connection to server */
	if(!poptPeekArg(pc)) {
		poptPrintUsage(pc, stderr, 0);
		return -1;
	}

	path = talloc_strdup(frame, poptGetArg(pc));
	if (!path) {
		return -1;
	}

	if(!poptPeekArg(pc)) {
		poptPrintUsage(pc, stderr, 0);
		return -1;
	}

	filename = talloc_strdup(frame, poptGetArg(pc));
	if (!filename) {
		return -1;
	}

	poptFreeContext(pc);
	popt_burn_cmdline_password(argc, argv);
	popt_common_credentials_post();

	string_replace(path,'/','\\');

	server = talloc_strdup(frame, path+2);
	if (!server) {
		return -1;
	}
	share = strchr_m(server,'\\');
	if (!share) {
		printf("Invalid argument: %s\n", share);
		return -1;
	}

	*share = 0;
	share++;

	if (!test_args) {
		cli = connect_one(popt_get_cmdline_auth_info(), server, share);
		if (!cli) {
			exit(EXIT_FAILED);
		}
	} else {
		popt_free_cmdline_auth_info();
		exit(0);
	}

	string_replace(filename, '/', '\\');
	if (filename[0] != '\\') {
		filename = talloc_asprintf(frame,
				"\\%s",
				filename);
		if (!filename) {
			return -1;
		}
	}

	/* Perform requested action */

	if (change_mode == REQUEST_INHERIT) {
		result = inherit(cli, filename, owner_username);
	} else if (change_mode != REQUEST_NONE) {
		result = owner_set(cli, change_mode, filename, owner_username);
	} else if (the_acl) {
		result = cacl_set(cli, filename, the_acl, mode, numeric);
	} else {
		result = cacl_dump(cli, filename, numeric);
	}

	popt_free_cmdline_auth_info();
	TALLOC_FREE(frame);

	return result;
}