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-rw-r--r--lib/libshare/os/linux/smb.c407
1 files changed, 0 insertions, 407 deletions
diff --git a/lib/libshare/os/linux/smb.c b/lib/libshare/os/linux/smb.c
deleted file mode 100644
index 40996ecc8f89..000000000000
--- a/lib/libshare/os/linux/smb.c
+++ /dev/null
@@ -1,407 +0,0 @@
-// SPDX-License-Identifier: CDDL-1.0
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or https://opensource.org/licenses/CDDL-1.0.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011,2012 Turbo Fredriksson <turbo@bayour.com>, based on nfs.c
- * by Gunnar Beutner
- * Copyright (c) 2019, 2020 by Delphix. All rights reserved.
- *
- * This is an addition to the zfs device driver to add, modify and remove SMB
- * shares using the 'net share' command that comes with Samba.
- *
- * TESTING
- * Make sure that samba listens to 'localhost' (127.0.0.1) and that the options
- * 'usershare max shares' and 'usershare owner only' have been reviewed/set
- * accordingly (see zfs(8) for information).
- *
- * Once configuration in samba have been done, test that this
- * works with the following three commands (in this case, my ZFS
- * filesystem is called 'share/Test1'):
- *
- * (root)# net -U root -S 127.0.0.1 usershare add Test1 /share/Test1 \
- * "Comment: /share/Test1" "Everyone:F"
- * (root)# net usershare list | grep -i test
- * (root)# net -U root -S 127.0.0.1 usershare delete Test1
- *
- * The first command will create a user share that gives everyone full access.
- * To limit the access below that, use normal UNIX commands (chmod, chown etc).
- */
-
-#include <time.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <libzfs.h>
-#include <libshare.h>
-#include "libshare_impl.h"
-#include "smb.h"
-
-static boolean_t smb_available(void);
-
-static smb_share_t *smb_shares;
-static int smb_disable_share(sa_share_impl_t impl_share);
-static boolean_t smb_is_share_active(sa_share_impl_t impl_share);
-
-/*
- * Retrieve the list of SMB shares.
- */
-static int
-smb_retrieve_shares(void)
-{
- int rc = SA_OK;
- char file_path[PATH_MAX], line[512], *token, *key, *value;
- char *dup_value = NULL, *path = NULL, *comment = NULL, *name = NULL;
- char *guest_ok = NULL;
- DIR *shares_dir;
- FILE *share_file_fp = NULL;
- struct dirent *directory;
- struct stat eStat;
- smb_share_t *shares, *new_shares = NULL;
-
- /* opendir(), stat() */
- shares_dir = opendir(SHARE_DIR);
- if (shares_dir == NULL)
- return (SA_SYSTEM_ERR);
-
- /* Go through the directory, looking for shares */
- while ((directory = readdir(shares_dir))) {
- int fd;
-
- if (directory->d_name[0] == '.')
- continue;
-
- snprintf(file_path, sizeof (file_path),
- "%s/%s", SHARE_DIR, directory->d_name);
-
- if ((fd = open(file_path, O_RDONLY | O_CLOEXEC)) == -1) {
- rc = SA_SYSTEM_ERR;
- goto out;
- }
-
- if (fstat(fd, &eStat) == -1) {
- close(fd);
- rc = SA_SYSTEM_ERR;
- goto out;
- }
-
- if (!S_ISREG(eStat.st_mode)) {
- close(fd);
- continue;
- }
-
- if ((share_file_fp = fdopen(fd, "r")) == NULL) {
- close(fd);
- rc = SA_SYSTEM_ERR;
- goto out;
- }
-
- name = strdup(directory->d_name);
- if (name == NULL) {
- rc = SA_NO_MEMORY;
- goto out;
- }
-
- while (fgets(line, sizeof (line), share_file_fp)) {
- if (line[0] == '#')
- continue;
-
- /* Trim trailing new-line character(s). */
- while (line[strlen(line) - 1] == '\r' ||
- line[strlen(line) - 1] == '\n')
- line[strlen(line) - 1] = '\0';
-
- /* Split the line in two, separated by '=' */
- token = strchr(line, '=');
- if (token == NULL)
- continue;
-
- key = line;
- value = token + 1;
- *token = '\0';
-
- dup_value = strdup(value);
- if (dup_value == NULL) {
- rc = SA_NO_MEMORY;
- goto out;
- }
-
- if (strcmp(key, "path") == 0) {
- free(path);
- path = dup_value;
- } else if (strcmp(key, "comment") == 0) {
- free(comment);
- comment = dup_value;
- } else if (strcmp(key, "guest_ok") == 0) {
- free(guest_ok);
- guest_ok = dup_value;
- } else
- free(dup_value);
-
- dup_value = NULL;
-
- if (path == NULL || comment == NULL || guest_ok == NULL)
- continue; /* Incomplete share definition */
- else {
- shares = (smb_share_t *)
- malloc(sizeof (smb_share_t));
- if (shares == NULL) {
- rc = SA_NO_MEMORY;
- goto out;
- }
-
- (void) strlcpy(shares->name, name,
- sizeof (shares->name));
-
- (void) strlcpy(shares->path, path,
- sizeof (shares->path));
-
- (void) strlcpy(shares->comment, comment,
- sizeof (shares->comment));
-
- shares->guest_ok = atoi(guest_ok);
-
- shares->next = new_shares;
- new_shares = shares;
-
- free(path);
- free(comment);
- free(guest_ok);
-
- path = NULL;
- comment = NULL;
- guest_ok = NULL;
- }
- }
-
-out:
- if (share_file_fp != NULL) {
- fclose(share_file_fp);
- share_file_fp = NULL;
- }
-
- free(name);
- free(path);
- free(comment);
- free(guest_ok);
-
- name = NULL;
- path = NULL;
- comment = NULL;
- guest_ok = NULL;
- }
- closedir(shares_dir);
-
- smb_shares = new_shares;
-
- return (rc);
-}
-
-/*
- * Used internally by smb_enable_share to enable sharing for a single host.
- */
-static int
-smb_enable_share_one(const char *sharename, const char *sharepath)
-{
- char name[SMB_NAME_MAX], comment[SMB_COMMENT_MAX];
-
- /* Support ZFS share name regexp '[[:alnum:]_-.: ]' */
- strlcpy(name, sharename, sizeof (name));
- for (char *itr = name; *itr != '\0'; ++itr)
- switch (*itr) {
- case '/':
- case '-':
- case ':':
- case ' ':
- *itr = '_';
- }
-
- /*
- * CMD: net -S NET_CMD_ARG_HOST usershare add Test1 /share/Test1 \
- * "Comment" "Everyone:F"
- */
- snprintf(comment, sizeof (comment), "Comment: %s", sharepath);
-
- char *argv[] = {
- (char *)NET_CMD_PATH,
- (char *)"-S",
- (char *)NET_CMD_ARG_HOST,
- (char *)"usershare",
- (char *)"add",
- name,
- (char *)sharepath,
- comment,
- (char *)"Everyone:F",
- NULL,
- };
-
- if (libzfs_run_process(argv[0], argv, 0) != 0)
- return (SA_SYSTEM_ERR);
-
- /* Reload the share file */
- (void) smb_retrieve_shares();
-
- return (SA_OK);
-}
-
-/*
- * Enables SMB sharing for the specified share.
- */
-static int
-smb_enable_share(sa_share_impl_t impl_share)
-{
- if (!smb_available())
- return (SA_SYSTEM_ERR);
-
- if (smb_is_share_active(impl_share))
- smb_disable_share(impl_share);
-
- if (impl_share->sa_shareopts == NULL) /* on/off */
- return (SA_SYSTEM_ERR);
-
- if (strcmp(impl_share->sa_shareopts, "off") == 0)
- return (SA_OK);
-
- /* Magic: Enable (i.e., 'create new') share */
- return (smb_enable_share_one(impl_share->sa_zfsname,
- impl_share->sa_mountpoint));
-}
-
-/*
- * Used internally by smb_disable_share to disable sharing for a single host.
- */
-static int
-smb_disable_share_one(const char *sharename)
-{
- /* CMD: net -S NET_CMD_ARG_HOST usershare delete Test1 */
- char *argv[] = {
- (char *)NET_CMD_PATH,
- (char *)"-S",
- (char *)NET_CMD_ARG_HOST,
- (char *)"usershare",
- (char *)"delete",
- (char *)sharename,
- NULL,
- };
-
- if (libzfs_run_process(argv[0], argv, 0) != 0)
- return (SA_SYSTEM_ERR);
- else
- return (SA_OK);
-}
-
-/*
- * Disables SMB sharing for the specified share.
- */
-static int
-smb_disable_share(sa_share_impl_t impl_share)
-{
- if (!smb_available()) {
- /*
- * The share can't possibly be active, so nothing
- * needs to be done to disable it.
- */
- return (SA_OK);
- }
-
- for (const smb_share_t *i = smb_shares; i != NULL; i = i->next)
- if (strcmp(impl_share->sa_mountpoint, i->path) == 0)
- return (smb_disable_share_one(i->name));
-
- return (SA_OK);
-}
-
-/*
- * Checks whether the specified SMB share options are syntactically correct.
- */
-static int
-smb_validate_shareopts(const char *shareopts)
-{
- /* TODO: Accept 'name' and sec/acl (?) */
- if ((strcmp(shareopts, "off") == 0) || (strcmp(shareopts, "on") == 0))
- return (SA_OK);
-
- return (SA_SYNTAX_ERR);
-}
-
-/*
- * Checks whether a share is currently active.
- */
-static boolean_t
-smb_is_share_active(sa_share_impl_t impl_share)
-{
- if (!smb_available())
- return (B_FALSE);
-
- /* Retrieve the list of (possible) active shares */
- smb_retrieve_shares();
-
- for (const smb_share_t *i = smb_shares; i != NULL; i = i->next)
- if (strcmp(impl_share->sa_mountpoint, i->path) == 0)
- return (B_TRUE);
-
- return (B_FALSE);
-}
-
-static int
-smb_update_shares(void)
-{
- /* Not implemented */
- return (0);
-}
-
-const sa_fstype_t libshare_smb_type = {
- .enable_share = smb_enable_share,
- .disable_share = smb_disable_share,
- .is_shared = smb_is_share_active,
-
- .validate_shareopts = smb_validate_shareopts,
- .commit_shares = smb_update_shares,
-};
-
-/*
- * Provides a convenient wrapper for determining SMB availability
- */
-static boolean_t
-smb_available(void)
-{
- static int avail;
-
- if (!avail) {
- struct stat statbuf;
-
- if (access(NET_CMD_PATH, F_OK) != 0 ||
- lstat(SHARE_DIR, &statbuf) != 0 ||
- !S_ISDIR(statbuf.st_mode))
- avail = -1;
- else
- avail = 1;
- }
-
- return (avail == 1);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-07 01:48:56 +0000