diff options
Diffstat (limited to '')
| -rw-r--r-- | source3/torture/mangle_test.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/source3/torture/mangle_test.c b/source3/torture/mangle_test.c new file mode 100644 index 0000000..92754b9 --- /dev/null +++ b/source3/torture/mangle_test.c @@ -0,0 +1,223 @@ +/* + Unix SMB/CIFS implementation. + SMB torture tester - mangling test + Copyright (C) Andrew Tridgell 2002 + + 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 "system/filesys.h" +#include "torture/proto.h" +#include "libsmb/libsmb.h" +#include "libsmb/clirap.h" +#include "util_tdb.h" +#include "lib/util/string_wrappers.h" + +extern int torture_numops; + +static TDB_CONTEXT *tdb; + +#define NAME_LENGTH 20 + +static unsigned total, collisions, failures; + +static bool test_one(struct cli_state *cli, const char *name) +{ + uint16_t fnum; + fstring shortname; + fstring name2; + NTSTATUS status; + TDB_DATA data; + + total++; + + status = cli_openx(cli, name, O_RDWR|O_CREAT|O_EXCL, DENY_NONE, &fnum); + if (!NT_STATUS_IS_OK(status)) { + printf("open of %s failed (%s)\n", name, nt_errstr(status)); + return False; + } + + status = cli_close(cli, fnum); + if (!NT_STATUS_IS_OK(status)) { + printf("close of %s failed (%s)\n", name, nt_errstr(status)); + return False; + } + + /* get the short name */ + status = cli_qpathinfo_alt_name(cli, name, shortname); + if (!NT_STATUS_IS_OK(status)) { + printf("query altname of %s failed (%s)\n", name, nt_errstr(status)); + return False; + } + + fstr_sprintf(name2, "\\mangle_test\\%s", shortname); + status = cli_unlink(cli, name2, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN); + if (!NT_STATUS_IS_OK(status)) { + printf("unlink of %s (%s) failed (%s)\n", + name2, name, nt_errstr(status)); + return False; + } + + /* recreate by short name */ + status = cli_openx(cli, name2, O_RDWR|O_CREAT|O_EXCL, DENY_NONE, &fnum); + if (!NT_STATUS_IS_OK(status)) { + printf("open2 of %s failed (%s)\n", name2, nt_errstr(status)); + return False; + } + + status = cli_close(cli, fnum); + if (!NT_STATUS_IS_OK(status)) { + printf("close of %s failed (%s)\n", name, nt_errstr(status)); + return False; + } + + /* and unlink by long name */ + status = cli_unlink(cli, name, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN); + if (!NT_STATUS_IS_OK(status)) { + printf("unlink2 of %s (%s) failed (%s)\n", + name, name2, nt_errstr(status)); + failures++; + cli_unlink(cli, name2, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN); + return True; + } + + /* see if the short name is already in the tdb */ + data = tdb_fetch_bystring(tdb, shortname); + if (data.dptr) { + /* maybe its a duplicate long name? */ + if (!strequal(name, (const char *)data.dptr)) { + /* we have a collision */ + collisions++; + printf("Collision between %s and %s -> %s " + " (coll/tot: %u/%u)\n", + name, data.dptr, shortname, collisions, total); + } + free(data.dptr); + } else { + TDB_DATA namedata; + /* store it for later */ + namedata.dptr = discard_const_p(uint8_t, name); + namedata.dsize = strlen(name)+1; + tdb_store_bystring(tdb, shortname, namedata, TDB_REPLACE); + } + + return True; +} + + +static void gen_name(char *name) +{ + const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~... "; + unsigned max_idx = strlen(chars); + unsigned len; + int i; + char *p; + + fstrcpy(name, "\\mangle_test\\"); + p = name + strlen(name); + + len = 1 + random() % NAME_LENGTH; + + for (i=0;i<len;i++) { + p[i] = chars[random() % max_idx]; + } + + p[i] = 0; + + if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) { + p[0] = '_'; + } + + /* have a high probability of a common lead char */ + if (random() % 2 == 0) { + p[0] = 'A'; + } + + /* and a medium probability of a common lead string */ + if (random() % 10 == 0) { + if (strlen(p) <= 5) { + fstrcpy(p, "ABCDE"); + } else { + /* try not to kill off the null termination */ + memcpy(p, "ABCDE", 5); + } + } + + /* and a high probability of a good extension length */ + if (random() % 2 == 0) { + char *s = strrchr(p, '.'); + if (s) { + s[4] = 0; + } + } + + /* ..... and a 100% proability of a file not ending in "." */ + if (p[strlen(p)-1] == '.') + p[strlen(p)-1] = '_'; +} + + +bool torture_mangle(int dummy) +{ + static struct cli_state *cli; + int i; + bool ret = True; + + printf("starting mangle test\n"); + + if (!torture_open_connection(&cli, 0)) { + return False; + } + + /* we will use an internal tdb to store the names we have used */ + tdb = tdb_open(NULL, 100000, TDB_INTERNAL, 0, 0); + if (!tdb) { + printf("ERROR: Failed to open tdb\n"); + return False; + } + + torture_deltree(cli, "\\mangle_test"); + + if (!NT_STATUS_IS_OK(cli_mkdir(cli, "\\mangle_test"))) { + printf("ERROR: Failed to make directory\n"); + return False; + } + + for (i=0;i<torture_numops;i++) { + fstring name; + ZERO_STRUCT(name); + + gen_name(name); + + if (!test_one(cli, name)) { + ret = False; + break; + } + if (total && total % 100 == 0) { + printf("collisions %u/%u - %.2f%% (%u failures)\r", + collisions, total, (100.0*collisions) / total, failures); + } + } + + torture_deltree(cli, "\\mangle_test"); + + printf("\nTotal collisions %u/%u - %.2f%% (%u failures)\n", + collisions, total, (100.0*collisions) / total, failures); + + torture_close_connection(cli); + + printf("mangle test finished\n"); + return (ret && (failures == 0)); +} |