/* 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 2 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, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "includes.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; #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; uint_t 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) { pstring path; switch (fstype) { case FSTYPE_SMB: return cli_open(c, fname, flags, DENY_NONE); case FSTYPE_NFS: slprintf(path, sizeof(path), "%s%s", nfs, fname); pstring_sub(path,"\\", "/"); return open(path, flags, 0666); } return -1; } static BOOL try_close(struct cli_state *c, int fstype, int fd) { switch (fstype) { case FSTYPE_SMB: return 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, uint_t start, uint_t len, enum brl_type op) { struct flock lock; switch (fstype) { case FSTYPE_SMB: return cli_lock(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, uint_t start, uint_t len) { struct flock lock; switch (fstype) { case FSTYPE_SMB: return 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(SMB_DEV_T dev, SMB_INO_T ino, int pid, enum brl_type lock_type, br_off start, br_off size) { printf("%6d %05x:%05x %s %.0f:%.0f(%.0f)\n", (int)pid, (int)dev, (int)ino, 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; fstrcpy(server,share+2); share = strchr_m(server,'\\'); if (!share) return NULL; *share = 0; share++; server_n = server; if (!got_pass) { char *pass = getpass("Password: "); if (pass) { fstrcpy(password, pass); } } slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), count++); nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????", username, lp_workgroup(), password, 0, NULL); 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) { uint_t conn = rec->conn; uint_t f = rec->f; uint_t fstype = rec->fstype; uint_t start = rec->start; uint_t len = rec->len; uint_t r1 = rec->r1; uint_t r2 = rec->r2; enum brl_type op; int server; BOOL ret[NSERVERS]; if (r1 < READ_PCT) { op = READ_LOCK; } else { op = WRITE_LOCK; } 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); 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); 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); } } 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); } } 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 = (struct record *)malloc(sizeof(*recorded) * 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 + ((uint_t)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; extern char *optarg; extern int optind; int opt; char *p; int seed; setlinebuf(stdout); dbf = x_stderr; if (argc < 5 || argv[1][0] == '-') { usage(); exit(1); } share1 = argv[1]; share2 = argv[2]; nfspath1 = argv[3]; nfspath2 = argv[4]; all_string_sub(share1,"/","\\",0); all_string_sub(share2,"/","\\",0); setup_logging(argv[0], DEBUG_STDOUT); argc -= 4; argv += 4; lp_load(dyn_CONFIGFILE,True,False,False); 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(1); test_locks(share1, share2, nfspath1, nfspath2); return(0); }