From 8daa83a594a2e98f39d764422bfbdbc62c9efd44 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 19:20:00 +0200
Subject: Adding upstream version 2:4.20.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 source3/torture/locktest2.c | 610 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 610 insertions(+)
 create mode 100644 source3/torture/locktest2.c

(limited to 'source3/torture/locktest2.c')

diff --git a/source3/torture/locktest2.c b/source3/torture/locktest2.c
new file mode 100644
index 0000000..851d77b
--- /dev/null
+++ b/source3/torture/locktest2.c
@@ -0,0 +1,610 @@
+/*
+   Unix SMB/CIFS implementation.
+   byte range lock tester - with local filesystem support
+   Copyright (C) Andrew Tridgell 1999
+
+   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 "libsmb/libsmb.h"
+#include "system/filesys.h"
+#include "locking/share_mode_lock.h"
+#include "locking/proto.h"
+#include "lib/util/string_wrappers.h"
+
+static fstring password;
+static fstring username;
+static int got_pass;
+static int numops = 1000;
+static bool showall;
+static bool analyze;
+static bool hide_unlock_fails;
+static bool use_oplocks;
+
+extern char *optarg;
+extern int optind;
+
+#define FILENAME "\\locktest.dat"
+#define LOCKRANGE 100
+#define LOCKBASE 0
+
+/*
+#define LOCKBASE (0x40000000 - 50)
+*/
+
+#define READ_PCT 50
+#define LOCK_PCT 25
+#define UNLOCK_PCT 65
+#define RANGE_MULTIPLE 1
+
+#define NSERVERS 2
+#define NCONNECTIONS 2
+#define NUMFSTYPES 2
+#define NFILES 2
+#define LOCK_TIMEOUT 0
+
+#define FSTYPE_SMB 0
+#define FSTYPE_NFS 1
+
+struct record {
+	char r1, r2;
+	char conn, f, fstype;
+	unsigned start, len;
+	char needed;
+};
+
+static struct record *recorded;
+
+static int try_open(struct cli_state *c, char *nfs, int fstype, const char *fname, int flags)
+{
+	char *path;
+
+	switch (fstype) {
+	case FSTYPE_SMB:
+		{
+			uint16_t fd;
+			if (!NT_STATUS_IS_OK(cli_openx(c, fname, flags, DENY_NONE, &fd))) {
+				return -1;
+			}
+			return fd;
+		}
+
+	case FSTYPE_NFS:
+		if (asprintf(&path, "%s%s", nfs, fname) > 0) {
+			int ret;
+			string_replace(path,'\\', '/');
+			ret = open(path, flags, 0666);
+			SAFE_FREE(path);
+			return ret;
+		}
+		break;
+	}
+
+	return -1;
+}
+
+static bool try_close(struct cli_state *c, int fstype, int fd)
+{
+	switch (fstype) {
+	case FSTYPE_SMB:
+		return NT_STATUS_IS_OK(cli_close(c, fd));
+
+	case FSTYPE_NFS:
+		return close(fd) == 0;
+	}
+
+	return False;
+}
+
+static bool try_lock(struct cli_state *c, int fstype,
+		     int fd, unsigned start, unsigned len,
+		     enum brl_type op)
+{
+	struct flock lock;
+
+	switch (fstype) {
+	case FSTYPE_SMB:
+		return NT_STATUS_IS_OK(cli_lock32(c, fd, start, len,
+				       LOCK_TIMEOUT, op));
+
+	case FSTYPE_NFS:
+		lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
+		lock.l_whence = SEEK_SET;
+		lock.l_start = start;
+		lock.l_len = len;
+		lock.l_pid = getpid();
+		return fcntl(fd,F_SETLK,&lock) == 0;
+	}
+
+	return False;
+}
+
+static bool try_unlock(struct cli_state *c, int fstype,
+		       int fd, unsigned start, unsigned len)
+{
+	struct flock lock;
+
+	switch (fstype) {
+	case FSTYPE_SMB:
+		return NT_STATUS_IS_OK(cli_unlock(c, fd, start, len));
+
+	case FSTYPE_NFS:
+		lock.l_type = F_UNLCK;
+		lock.l_whence = SEEK_SET;
+		lock.l_start = start;
+		lock.l_len = len;
+		lock.l_pid = getpid();
+		return fcntl(fd,F_SETLK,&lock) == 0;
+	}
+
+	return False;
+}
+
+static void print_brl(struct file_id id, struct server_id pid,
+		      enum brl_type lock_type,
+		      enum brl_flavour lock_flav,
+		      br_off start, br_off size,
+		      void *private_data)
+{
+	struct file_id_buf idbuf;
+
+	printf("%6d   %s    %s  %.0f:%.0f(%.0f)\n",
+	       (int)procid_to_pid(&pid),
+	       file_id_str_buf(id, &idbuf),
+	       lock_type==READ_LOCK?"R":"W",
+	       (double)start, (double)start+size-1,(double)size);
+
+}
+
+/*****************************************************
+return a connection to a server
+*******************************************************/
+static struct cli_state *connect_one(char *share)
+{
+	struct cli_state *c;
+	char *server_n;
+	fstring server;
+	fstring myname;
+	static int count;
+	NTSTATUS nt_status;
+	bool use_kerberos = false;
+	bool fallback_after_kerberos = false;
+	bool use_ccache = false;
+	bool pw_nt_hash = false;
+	struct cli_credentials *creds = NULL;
+
+	fstrcpy(server,share+2);
+	share = strchr_m(server,'\\');
+	if (!share) return NULL;
+	*share = 0;
+	share++;
+
+	server_n = server;
+
+	if (!got_pass) {
+		char pwd[256] = {0};
+		int rc;
+
+		rc = samba_getpass("Password: ", pwd, sizeof(pwd), false, false);
+		if (rc == 0) {
+			fstrcpy(password, pwd);
+		}
+	}
+
+	creds = cli_session_creds_init(NULL,
+				       username,
+				       lp_workgroup(),
+				       NULL, /* realm (use default) */
+				       password,
+				       use_kerberos,
+				       fallback_after_kerberos,
+				       use_ccache,
+				       pw_nt_hash);
+	if (creds == NULL) {
+		DEBUG(0, ("cli_session_creds_init failed\n"));
+		return NULL;
+	}
+
+	slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
+
+	nt_status = cli_full_connection_creds(&c,
+					      myname,
+					      server_n,
+					      NULL,
+					      0,
+					      share,
+					      "?????",
+					      creds,
+					      0);
+	TALLOC_FREE(creds);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
+		return NULL;
+	}
+
+	c->use_oplocks = use_oplocks;
+
+	return c;
+}
+
+
+static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
+		      char *nfs[NSERVERS],
+		      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
+		      char *share1, char *share2)
+{
+	int server, conn, f, fstype;
+	char *share[2];
+	share[0] = share1;
+	share[1] = share2;
+
+	fstype = FSTYPE_SMB;
+
+	for (server=0;server<NSERVERS;server++)
+	for (conn=0;conn<NCONNECTIONS;conn++) {
+		if (cli[server][conn]) {
+			for (f=0;f<NFILES;f++) {
+				cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
+			}
+			cli_ulogoff(cli[server][conn]);
+			cli_shutdown(cli[server][conn]);
+		}
+		cli[server][conn] = connect_one(share[server]);
+		if (!cli[server][conn]) {
+			DEBUG(0,("Failed to connect to %s\n", share[server]));
+			exit(1);
+		}
+	}
+}
+
+
+
+static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
+		     char *nfs[NSERVERS],
+		     int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
+		     struct record *rec)
+{
+	unsigned conn = rec->conn;
+	unsigned f = rec->f;
+	unsigned fstype = rec->fstype;
+	unsigned start = rec->start;
+	unsigned len = rec->len;
+	unsigned r1 = rec->r1;
+	unsigned r2 = rec->r2;
+	enum brl_type op;
+	int server;
+	bool ret[NSERVERS];
+
+	if (r1 < READ_PCT) {
+		op = READ_LOCK;
+	} else {
+		op = WRITE_LOCK;
+	}
+
+	if (fstype >= NUMFSTYPES) {
+		return false;
+	}
+
+	if (r2 < LOCK_PCT) {
+		/* set a lock */
+		for (server=0;server<NSERVERS;server++) {
+			ret[server] = try_lock(cli[server][conn], fstype,
+					       fnum[server][fstype][conn][f],
+					       start, len, op);
+		}
+		if (showall || ret[0] != ret[1]) {
+			printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
+			       conn, fstype, f,
+			       start, start+len-1, len,
+			       op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
+			       ret[0], ret[1]);
+		}
+		if (showall) brl_forall(print_brl, NULL);
+		if (ret[0] != ret[1]) return False;
+	} else if (r2 < LOCK_PCT+UNLOCK_PCT) {
+		/* unset a lock */
+		for (server=0;server<NSERVERS;server++) {
+			ret[server] = try_unlock(cli[server][conn], fstype,
+						 fnum[server][fstype][conn][f],
+						 start, len);
+		}
+		if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
+			printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
+			       conn, fstype, f,
+			       start, start+len-1, len,
+			       ret[0], ret[1]);
+		}
+		if (showall) brl_forall(print_brl, NULL);
+		if (!hide_unlock_fails && ret[0] != ret[1]) return False;
+	} else {
+		/* reopen the file */
+		for (server=0;server<NSERVERS;server++) {
+			try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
+			fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
+								 O_RDWR|O_CREAT);
+			if (fnum[server][fstype][conn][f] == -1) {
+				printf("failed to reopen on share1\n");
+				return False;
+			}
+		}
+		if (showall) {
+			printf("reopen conn=%u fstype=%u f=%u\n",
+			       conn, fstype, f);
+			brl_forall(print_brl, NULL);
+		}
+	}
+	return True;
+}
+
+static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
+			char *nfs[NSERVERS],
+			int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
+{
+	int server, conn, f, fstype;
+
+	for (server=0;server<NSERVERS;server++)
+	for (fstype=0;fstype<NUMFSTYPES;fstype++)
+	for (conn=0;conn<NCONNECTIONS;conn++)
+	for (f=0;f<NFILES;f++) {
+		if (fnum[server][fstype][conn][f] != -1) {
+			try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
+			fnum[server][fstype][conn][f] = -1;
+		}
+	}
+	for (server=0;server<NSERVERS;server++) {
+		cli_unlink(cli[server][0], FILENAME, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
+	}
+}
+
+static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
+		       char *nfs[NSERVERS],
+		       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
+{
+	int server, fstype, conn, f;
+
+	for (server=0;server<NSERVERS;server++)
+	for (fstype=0;fstype<NUMFSTYPES;fstype++)
+	for (conn=0;conn<NCONNECTIONS;conn++)
+	for (f=0;f<NFILES;f++) {
+		fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
+							 O_RDWR|O_CREAT);
+		if (fnum[server][fstype][conn][f] == -1) {
+			fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
+				server, fstype, conn, f);
+			exit(1);
+		}
+	}
+}
+
+
+static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
+		  char *nfs[NSERVERS],
+		  int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
+		  int n)
+{
+	int i;
+	printf("testing %u ...\n", n);
+	for (i=0; i<n; i++) {
+		if (i && i % 100 == 0) {
+			printf("%u\n", i);
+		}
+
+		if (recorded[i].needed &&
+		    !test_one(cli, nfs, fnum, &recorded[i])) return i;
+	}
+	return n;
+}
+
+
+/* each server has two connections open to it. Each connection has two file
+   descriptors open on the file - 8 file descriptors in total
+
+   we then do random locking ops in tamdem on the 4 fnums from each
+   server and ensure that the results match
+ */
+static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
+{
+	struct cli_state *cli[NSERVERS][NCONNECTIONS];
+	char *nfs[NSERVERS];
+	int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
+	int n, i, n1;
+
+	nfs[0] = nfspath1;
+	nfs[1] = nfspath2;
+
+	ZERO_STRUCT(fnum);
+	ZERO_STRUCT(cli);
+
+	recorded = SMB_MALLOC_ARRAY(struct record, numops);
+
+	for (n=0; n<numops; n++) {
+		recorded[n].conn = random() % NCONNECTIONS;
+		recorded[n].fstype = random() % NUMFSTYPES;
+		recorded[n].f = random() % NFILES;
+		recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
+		recorded[n].len = 1 +
+			random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
+		recorded[n].start *= RANGE_MULTIPLE;
+		recorded[n].len *= RANGE_MULTIPLE;
+		recorded[n].r1 = random() % 100;
+		recorded[n].r2 = random() % 100;
+		recorded[n].needed = True;
+	}
+
+	reconnect(cli, nfs, fnum, share1, share2);
+	open_files(cli, nfs, fnum);
+	n = retest(cli, nfs, fnum, numops);
+
+	if (n == numops || !analyze) return;
+	n++;
+
+	while (1) {
+		n1 = n;
+
+		close_files(cli, nfs, fnum);
+		reconnect(cli, nfs, fnum, share1, share2);
+		open_files(cli, nfs, fnum);
+
+		for (i=0;i<n-1;i++) {
+			int m;
+			recorded[i].needed = False;
+
+			close_files(cli, nfs, fnum);
+			open_files(cli, nfs, fnum);
+
+			m = retest(cli, nfs, fnum, n);
+			if (m == n) {
+				recorded[i].needed = True;
+			} else {
+				if (i < m) {
+					memmove(&recorded[i], &recorded[i+1],
+						(m-i)*sizeof(recorded[0]));
+				}
+				n = m;
+				i--;
+			}
+		}
+
+		if (n1 == n) break;
+	}
+
+	close_files(cli, nfs, fnum);
+	reconnect(cli, nfs, fnum, share1, share2);
+	open_files(cli, nfs, fnum);
+	showall = True;
+	n1 = retest(cli, nfs, fnum, n);
+	if (n1 != n-1) {
+		printf("ERROR - inconsistent result (%u %u)\n", n1, n);
+	}
+	close_files(cli, nfs, fnum);
+
+	for (i=0;i<n;i++) {
+		printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
+		       recorded[i].r1,
+		       recorded[i].r2,
+		       recorded[i].conn,
+		       recorded[i].fstype,
+		       recorded[i].f,
+		       recorded[i].start,
+		       recorded[i].len,
+		       recorded[i].needed);
+	}
+}
+
+
+
+static void usage(void)
+{
+	printf(
+"Usage:\n\
+  locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
+  options:\n\
+        -U user%%pass\n\
+        -s seed\n\
+        -o numops\n\
+        -u          hide unlock fails\n\
+        -a          (show all ops)\n\
+        -O          use oplocks\n\
+");
+}
+
+/****************************************************************************
+  main program
+****************************************************************************/
+ int main(int argc,char *argv[])
+{
+	char *share1, *share2, *nfspath1, *nfspath2;
+	int opt;
+	char *p;
+	int seed;
+
+	setlinebuf(stdout);
+
+	if (argc < 5 || argv[1][0] == '-') {
+		usage();
+		exit(1);
+	}
+
+	setup_logging(argv[0], DEBUG_STDOUT);
+
+	share1 = argv[1];
+	share2 = argv[2];
+	nfspath1 = argv[3];
+	nfspath2 = argv[4];
+
+	all_string_sub(share1,"/","\\",0);
+	all_string_sub(share2,"/","\\",0);
+
+	argc -= 4;
+	argv += 4;
+
+	lp_load_global(get_dyn_CONFIGFILE());
+	load_interfaces();
+
+	if (getenv("USER")) {
+		fstrcpy(username,getenv("USER"));
+	}
+
+	seed = time(NULL);
+
+	while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
+		switch (opt) {
+		case 'U':
+			fstrcpy(username,optarg);
+			p = strchr_m(username,'%');
+			if (p) {
+				*p = 0;
+				fstrcpy(password, p+1);
+				got_pass = 1;
+			}
+			break;
+		case 's':
+			seed = atoi(optarg);
+			break;
+		case 'u':
+			hide_unlock_fails = True;
+			break;
+		case 'o':
+			numops = atoi(optarg);
+			break;
+		case 'O':
+			use_oplocks = True;
+			break;
+		case 'a':
+			showall = True;
+			break;
+		case 'A':
+			analyze = True;
+			break;
+		case 'h':
+			usage();
+			exit(1);
+		default:
+			printf("Unknown option %c (%d)\n", (char)opt, opt);
+			exit(1);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	DEBUG(0,("seed=%u\n", seed));
+	srandom(seed);
+
+	locking_init_readonly();
+	test_locks(share1, share2, nfspath1, nfspath2);
+
+	return(0);
+}
-- 
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