torture/locktest2.c

説明を見る。

/* 
   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;

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)
{
        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, unsigned start, unsigned 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, unsigned start, unsigned 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, struct process_id pid, 
                      enum brl_type lock_type,
                      enum brl_flavour lock_flav,
                      br_off start, br_off size)
{
        printf("%6d   %05x:%05x    %s  %.0f:%.0f(%.0f)\n", 
               (int)procid_to_pid(&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-%lu-%u", (unsigned long)getpid(), count++);

        nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????", 
                                        username, lp_workgroup(), password, 0,
                                        Undefined, 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)
{
        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 (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 = 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);

        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],True);

        argc -= 4;
        argv += 4;

        lp_load(dyn_CONFIGFILE,True,False,False,True);
        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);
}

---