--- /dev/null
+/*
+ CIFSDD - dd for SMB.
+ Main program, argument handling and block copying.
+
+ Copyright (C) James Peach 2005-2006
+
+ 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"
+#include "system/filesys.h"
+#include "auth/gensec/gensec.h"
+#include "lib/cmdline/popt_common.h"
+
+#include "cifsdd.h"
+
+const char * const PROGNAME = "cifsdd";
+
+#define SYNTAX_EXIT_CODE 1 /* Invokation syntax or logic error. */
+#define EOM_EXIT_CODE 9 /* Out of memory error. */
+#define FILESYS_EXIT_CODE 10 /* File manipulation error. */
+#define IOERROR_EXIT_CODE 11 /* Error during IO phase. */
+
+struct dd_stats_record dd_stats;
+
+static int dd_sigint;
+static int dd_sigusr1;
+
+static void dd_handle_signal(int sig)
+{
+ switch (sig)
+ {
+ case SIGINT:
+ ++dd_sigint;
+ break;
+ case SIGUSR1:
+ ++dd_sigusr1;
+ break;
+ default:
+ break;
+ }
+}
+
+/* ------------------------------------------------------------------------- */
+/* Argument handling. */
+/* ------------------------------------------------------------------------- */
+
+static const char * argtype_str(enum argtype arg_type)
+{
+ static const struct {
+ enum argtype arg_type;
+ const char * arg_name;
+ } names [] =
+ {
+ { ARG_NUMERIC, "COUNT" },
+ { ARG_SIZE, "SIZE" },
+ { ARG_PATHNAME, "FILE" },
+ { ARG_BOOL, "BOOLEAN" },
+ };
+
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(names); ++i) {
+ if (arg_type == names[i].arg_type) {
+ return(names[i].arg_name);
+ }
+ }
+
+ return("<unknown>");
+}
+
+static struct argdef args[] =
+{
+ { "bs", ARG_SIZE, "force ibs and obs to SIZE bytes" },
+ { "ibs", ARG_SIZE, "read SIZE bytes at a time" },
+ { "obs", ARG_SIZE, "write SIZE bytes at a time" },
+
+ { "count", ARG_NUMERIC, "copy COUNT input blocks" },
+ { "seek",ARG_NUMERIC, "skip COUNT blocks at start of output" },
+ { "skip",ARG_NUMERIC, "skip COUNT blocks at start of input" },
+
+ { "if", ARG_PATHNAME, "read input from FILE" },
+ { "of", ARG_PATHNAME, "write output to FILE" },
+
+ { "direct", ARG_BOOL, "use direct I/O if non-zero" },
+ { "sync", ARG_BOOL, "use synchronous writes if non-zero" },
+ { "oplock", ARG_BOOL, "take oplocks on the input and output files" },
+
+/* FIXME: We should support using iflags and oflags for setting oplock and I/O
+ * options. This would make us compatible with GNU dd.
+ */
+};
+
+struct argdef * find_named_arg(const char * arg)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(args); ++i) {
+ if (strwicmp(arg, args[i].arg_name) == 0) {
+ return(&args[i]);
+ }
+ }
+
+ return(NULL);
+}
+
+int set_arg_argv(const char * argv)
+{
+ struct argdef * arg;
+
+ char * name;
+ char * val;
+
+ if ((name = strdup(argv)) == NULL) {
+ return(0);
+ }
+
+ if ((val = strchr(name, '=')) == NULL) {
+ fprintf(stderr, "%s: malformed argument \"%s\"\n",
+ PROGNAME, argv);
+ goto fail;
+ }
+
+ *val = '\0';
+ val++;
+
+ if ((arg = find_named_arg(name)) == NULL) {
+ fprintf(stderr, "%s: ignoring unknown argument \"%s\"\n",
+ PROGNAME, name);
+ goto fail;
+ }
+
+ /* Found a matching name; convert the variable argument. */
+ switch (arg->arg_type) {
+ case ARG_NUMERIC:
+ if (!conv_str_u64(val, &arg->arg_val.nval)) {
+ goto fail;
+ }
+ break;
+ case ARG_SIZE:
+ if (!conv_str_size(val, &arg->arg_val.nval)) {
+ goto fail;
+ }
+ break;
+ case ARG_BOOL:
+ if (!conv_str_bool(val, &arg->arg_val.bval)) {
+ goto fail;
+ }
+ break;
+ case ARG_PATHNAME:
+ if (!(arg->arg_val.pval = strdup(val))) {
+ goto fail;
+ }
+ break;
+ default:
+ fprintf(stderr, "%s: argument \"%s\" is of "
+ "unknown type\n", PROGNAME, name);
+ goto fail;
+ }
+
+ free(name);
+ return(1);
+
+fail:
+ free(name);
+ return(0);
+}
+
+void set_arg_val(const char * name, ...)
+{
+ va_list ap;
+ struct argdef * arg;
+
+ va_start(ap, name);
+ if ((arg = find_named_arg(name)) == NULL) {
+ goto fail;
+ }
+
+ /* Found a matching name; convert the variable argument. */
+ switch (arg->arg_type) {
+ case ARG_NUMERIC:
+ case ARG_SIZE:
+ arg->arg_val.nval = va_arg(ap, uint64_t);
+ break;
+ case ARG_BOOL:
+ arg->arg_val.bval = va_arg(ap, BOOL);
+ break;
+ case ARG_PATHNAME:
+ arg->arg_val.pval = va_arg(ap, char *);
+ if (arg->arg_val.pval) {
+ arg->arg_val.pval = strdup(arg->arg_val.pval);
+ }
+ break;
+ default:
+ fprintf(stderr, "%s: argument \"%s\" is of "
+ "unknown type\n", PROGNAME, name);
+ goto fail;
+ }
+
+ va_end(ap);
+ return;
+
+fail:
+ fprintf(stderr, "%s: ignoring unknown argument \"%s\"\n",
+ PROGNAME, name);
+ va_end(ap);
+ return;
+}
+
+BOOL check_arg_bool(const char * name)
+{
+ struct argdef * arg;
+
+ if ((arg = find_named_arg(name)) &&
+ (arg->arg_type == ARG_BOOL)) {
+ return(arg->arg_val.bval);
+ }
+
+ DEBUG(0, ("invalid argument name: %s", name));
+ SMB_ASSERT(0);
+ return(False);
+}
+
+uint64_t check_arg_numeric(const char * name)
+{
+ struct argdef * arg;
+
+ if ((arg = find_named_arg(name)) &&
+ (arg->arg_type == ARG_NUMERIC || arg->arg_type == ARG_SIZE)) {
+ return(arg->arg_val.nval);
+ }
+
+ DEBUG(0, ("invalid argument name: %s", name));
+ SMB_ASSERT(0);
+ return(-1);
+}
+
+const char * check_arg_pathname(const char * name)
+{
+ struct argdef * arg;
+
+ if ((arg = find_named_arg(name)) &&
+ (arg->arg_type == ARG_PATHNAME)) {
+ return(arg->arg_val.pval);
+ }
+
+ DEBUG(0, ("invalid argument name: %s", name));
+ SMB_ASSERT(0);
+ return(NULL);
+}
+
+static void dump_args(void)
+{
+ int i;
+
+ DEBUG(10, ("dumping argument values:\n"));
+ for (i = 0; i < ARRAY_SIZE(args); ++i) {
+ switch (args[i].arg_type) {
+ case ARG_NUMERIC:
+ case ARG_SIZE:
+ DEBUG(10, ("\t%s=%llu\n", args[i].arg_name,
+ (unsigned long long)args[i].arg_val.nval));
+ break;
+ case ARG_BOOL:
+ DEBUG(10, ("\t%s=%s\n", args[i].arg_name,
+ args[i].arg_val.bval ? "yes" : "no"));
+ break;
+ case ARG_PATHNAME:
+ DEBUG(10, ("\t%s=%s\n", args[i].arg_name,
+ args[i].arg_val.pval ?
+ args[i].arg_val.pval :
+ "(NULL)"));
+ break;
+ default:
+ SMB_ASSERT(0);
+ }
+ }
+}
+
+static void cifsdd_help_message(poptContext pctx,
+ enum poptCallbackReason preason,
+ struct poptOption * poption,
+ const char * parg,
+ void * pdata)
+{
+ static const char const notes[] =
+"FILE can be a local filename or a UNC path of the form //server/share/path.\n";
+
+ char prefix[24];
+ int i;
+
+ if (poption->shortName != '?') {
+ poptPrintUsage(pctx, stdout, 0);
+ fprintf(stdout, " [dd options]\n");
+ exit(0);
+ }
+
+ poptPrintHelp(pctx, stdout, 0);
+ fprintf(stdout, "\nCIFS dd options:\n");
+
+ for (i = 0; i < ARRAY_SIZE(args); ++i) {
+ if (args[i].arg_name == NULL) {
+ break;
+ }
+
+ snprintf(prefix, sizeof(prefix), "%s=%-*s",
+ args[i].arg_name,
+ (int)(sizeof(prefix) - strlen(args[i].arg_name) - 2),
+ argtype_str(args[i].arg_type));
+ prefix[sizeof(prefix) - 1] = '\0';
+ fprintf(stdout, " %s%s\n", prefix, args[i].arg_help);
+ }
+
+ fprintf(stdout, "\n%s\n", notes);
+ exit(0);
+}
+
+/* ------------------------------------------------------------------------- */
+/* Main block copying routine. */
+/* ------------------------------------------------------------------------- */
+
+static void print_transfer_stats(void)
+{
+ if (DEBUGLEVEL > 0) {
+ printf("%llu+%llu records in (%llu bytes)\n"
+ "%llu+%llu records out (%llu bytes)\n",
+ (unsigned long long)dd_stats.in.fblocks,
+ (unsigned long long)dd_stats.in.pblocks,
+ (unsigned long long)dd_stats.in.bytes,
+ (unsigned long long)dd_stats.out.fblocks,
+ (unsigned long long)dd_stats.out.pblocks,
+ (unsigned long long)dd_stats.out.bytes);
+ } else {
+ printf("%llu+%llu records in\n%llu+%llu records out\n",
+ (unsigned long long)dd_stats.in.fblocks,
+ (unsigned long long)dd_stats.in.pblocks,
+ (unsigned long long)dd_stats.out.fblocks,
+ (unsigned long long)dd_stats.out.pblocks);
+ }
+}
+
+static struct dd_iohandle * open_file(const char * which)
+{
+ int options = 0;
+ const char * path = NULL;
+ struct dd_iohandle * handle = NULL;
+
+ if (check_arg_bool("direct")) {
+ options |= DD_DIRECT_IO;
+ }
+
+ if (check_arg_bool("sync")) {
+ options |= DD_SYNC_IO;
+ }
+
+ if (check_arg_bool("oplock")) {
+ options |= DD_OPLOCK;
+ }
+
+ if (strcmp(which, "if") == 0) {
+ path = check_arg_pathname("if");
+ handle = dd_open_path(path, check_arg_numeric("ibs"),
+ options);
+ } else if (strcmp(which, "of") == 0) {
+ options |= DD_WRITE;
+ path = check_arg_pathname("of");
+ handle = dd_open_path(path, check_arg_numeric("obs"),
+ options);
+ } else {
+ SMB_ASSERT(0);
+ return(NULL);
+ }
+
+ if (!handle) {
+ fprintf(stderr, "%s: failed to open %s\n", PROGNAME, path);
+ }
+
+ return(handle);
+}
+
+static void set_max_xmit(uint64_t iomax)
+{
+ char buf[64];
+
+ snprintf(buf, sizeof(buf), "%llu", (unsigned long long)iomax);
+ lp_set_cmdline("max xmit", buf);
+}
+
+static int copy_files(void)
+{
+ uint8_t * iobuf; /* IO buffer. */
+ uint64_t iomax; /* Size of the IO buffer. */
+ uint64_t iosz; /* Amount of data in the IO buffer. */
+
+ uint64_t ibs;
+ uint64_t obs;
+ uint64_t count;
+
+ struct dd_iohandle * ifile;
+ struct dd_iohandle * ofile;
+
+ ibs = check_arg_numeric("ibs");
+ obs = check_arg_numeric("obs");
+ count = check_arg_numeric("count");
+
+ /* Allocate IO buffer. We need more than the max IO size because we
+ * could accumulate a remainder if ibs and obs don't match.
+ */
+ iomax = 2 * MAX(ibs, obs);
+ if ((iobuf = malloc(iomax)) == NULL) {
+ fprintf(stderr,
+ "%s: failed to allocate IO buffer of %llu bytes\n",
+ PROGNAME, (unsigned long long)iomax);
+ return(EOM_EXIT_CODE);
+ }
+
+ set_max_xmit(MAX(ibs, obs));
+
+ DEBUG(4, ("IO buffer size is %llu, max xmit is %d\n",
+ (unsigned long long)iomax, lp_max_xmit()));
+
+ if (!(ifile = open_file("if"))) {
+ return(FILESYS_EXIT_CODE);
+ }
+
+ if (!(ofile = open_file("of"))) {
+ return(FILESYS_EXIT_CODE);
+ }
+
+ /* Seek the files to their respective starting points. */
+ ifile->io_seek(ifile, check_arg_numeric("skip") * ibs);
+ ofile->io_seek(ofile, check_arg_numeric("seek") * obs);
+
+ DEBUG(4, ("max xmit was negotiated to be %d\n", lp_max_xmit()));
+
+ for (iosz = 0;;) {
+
+ /* Handle signals. We are somewhat compatible with GNU dd.
+ * SIGINT makes us stop, but still print transfer statistics.
+ * SIGUSR1 makes us print transfer statistics but we continue
+ * copying.
+ */
+ if (dd_sigint) {
+ break;
+ }
+
+ if (dd_sigusr1) {
+ print_transfer_stats();
+ dd_sigusr1 = 0;
+ }
+
+ if (ifile->io_flags & DD_END_OF_FILE) {
+ DEBUG(4, ("flushing %llu bytes at EOF\n", (unsigned long long)iosz));
+ while (iosz > 0) {
+ if (!dd_flush_block(ofile, iobuf,
+ &iosz, obs)) {
+ return(IOERROR_EXIT_CODE);
+ }
+ }
+ goto done;
+ }
+
+ /* Try and read enough blocks of ibs bytes to be able write
+ * out one of obs bytes.
+ */
+ if (!dd_fill_block(ifile, iobuf, &iosz, obs, ibs)) {
+ return(IOERROR_EXIT_CODE);
+ }
+
+ if (iosz == 0) {
+ /* Done. */
+ SMB_ASSERT(ifile->io_flags & DD_END_OF_FILE);
+ }
+
+ /* Stop reading when we hit the block count. */
+ if (dd_stats.in.bytes >= (ibs * count)) {
+ ifile->io_flags |= DD_END_OF_FILE;
+ }
+
+ /* If we wanted to be a legitimate dd, we would do character
+ * conversions and other shenanigans here.
+ */
+
+ /* Flush what we read in units of obs bytes. We want to have
+ * at least obs bytes in the IO buffer but might not if the
+ * file is too small.
+ */
+ if (!dd_flush_block(ofile, iobuf, &iosz, obs)) {
+ return(IOERROR_EXIT_CODE);
+ }
+ }
+
+done:
+ print_transfer_stats();
+ return(0);
+}
+
+/* ------------------------------------------------------------------------- */
+/* Main. */
+/* ------------------------------------------------------------------------- */
+
+struct poptOption cifsddHelpOptions[] = {
+ { NULL, '\0', POPT_ARG_CALLBACK, (void *)&cifsdd_help_message, '\0', NULL, NULL },
+ { "help", '?', 0, NULL, '?', "Show this help message", NULL },
+ { "usage", '\0', 0, NULL, 'u', "Display brief usage message", NULL },
+ POPT_TABLEEND
+} ;
+
+int main(int argc, const char ** argv)
+{
+ int i;
+ const char ** dd_args;
+
+ poptContext pctx;
+ struct poptOption poptions[] = {
+ /* POPT_AUTOHELP */
+ { NULL, '\0', POPT_ARG_INCLUDE_TABLE, cifsddHelpOptions,
+ 0, "Help options:", NULL },
+ POPT_COMMON_SAMBA
+ POPT_COMMON_CONNECTION
+ POPT_COMMON_CREDENTIALS
+ POPT_COMMON_VERSION
+ POPT_TABLEEND
+ };
+
+ /* Block sizes. */
+ set_arg_val("bs", (uint64_t)4096);
+ set_arg_val("ibs", (uint64_t)4096);
+ set_arg_val("obs", (uint64_t)4096);
+ /* Block counts. */
+ set_arg_val("count", (uint64_t)-1);
+ set_arg_val("seek", (uint64_t)0);
+ set_arg_val("seek", (uint64_t)0);
+ /* Files. */
+ set_arg_val("if", NULL);
+ set_arg_val("of", NULL);
+ /* Options. */
+ set_arg_val("direct", False);
+ set_arg_val("sync", False);
+ set_arg_val("oplock", False);
+
+ pctx = poptGetContext(PROGNAME, argc, argv, poptions, 0);
+ while ((i = poptGetNextOpt(pctx)) != -1) {
+ ;
+ }
+
+ for (dd_args = poptGetArgs(pctx); dd_args && *dd_args; ++dd_args) {
+
+ if (!set_arg_argv(*dd_args)) {
+ fprintf(stderr, "%s: invalid option: %s\n",
+ PROGNAME, *dd_args);
+ exit(SYNTAX_EXIT_CODE);
+ }
+
+ /* "bs" has the side-effect of setting "ibs" and "obs". */
+ if (strncmp(*dd_args, "bs=", 3) == 0) {
+ uint64_t bs = check_arg_numeric("bs");
+ set_arg_val("ibs", bs);
+ set_arg_val("obs", bs);
+ }
+ }
+
+ gensec_init();
+ dump_args();
+
+ if (check_arg_numeric("ibs") == 0 || check_arg_numeric("ibs") == 0) {
+ fprintf(stderr, "%s: block sizes must be greater that zero\n",
+ PROGNAME);
+ exit(SYNTAX_EXIT_CODE);
+ }
+
+ if (check_arg_pathname("if") == NULL) {
+ fprintf(stderr, "%s: missing input filename\n", PROGNAME);
+ exit(SYNTAX_EXIT_CODE);
+ }
+
+ if (check_arg_pathname("of") == NULL) {
+ fprintf(stderr, "%s: missing output filename\n", PROGNAME);
+ exit(SYNTAX_EXIT_CODE);
+ }
+
+ CatchSignal(SIGINT, dd_handle_signal);
+ CatchSignal(SIGUSR1, dd_handle_signal);
+ return(copy_files());
+}
+
+/* vim: set sw=8 sts=8 ts=8 tw=79 : */
--- /dev/null
+/*
+ CIFSDD - dd for SMB.
+ Declarations and administrivia.
+
+ Copyright (C) James Peach 2005-2006
+
+ 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.
+*/
+
+extern const char * const PROGNAME;
+
+enum argtype
+{
+ ARG_NUMERIC,
+ ARG_SIZE,
+ ARG_PATHNAME,
+ ARG_BOOL,
+};
+
+struct argdef
+{
+ const char * arg_name;
+ enum argtype arg_type;
+ const char * arg_help;
+
+ union
+ {
+ BOOL bval;
+ uint64_t nval;
+ const char * pval;
+ } arg_val;
+};
+
+int set_arg_argv(const char * argv);
+void set_arg_val(const char * name, ...);
+
+BOOL check_arg_bool(const char * name);
+uint64_t check_arg_numeric(const char * name);
+const char * check_arg_pathname(const char * name);
+
+typedef BOOL (*dd_seek_func)(void * handle, uint64_t offset);
+typedef BOOL (*dd_read_func)(void * handle, uint8_t * buf,
+ uint64_t wanted, uint64_t * actual);
+typedef BOOL (*dd_write_func)(void * handle, uint8_t * buf,
+ uint64_t wanted, uint64_t * actual);
+
+struct dd_stats_record
+{
+ struct
+ {
+ uint64_t fblocks; /* Full blocks. */
+ uint64_t pblocks; /* Partial blocks. */
+ uint64_t bytes; /* Total bytes read. */
+ } in;
+ struct
+ {
+ uint64_t fblocks; /* Full blocks. */
+ uint64_t pblocks; /* Partial blocks. */
+ uint64_t bytes; /* Total bytes written. */
+ } out;
+};
+
+extern struct dd_stats_record dd_stats;
+
+struct dd_iohandle
+{
+ dd_seek_func io_seek;
+ dd_read_func io_read;
+ dd_write_func io_write;
+ int io_flags;
+};
+
+#define DD_END_OF_FILE 0x10000000
+
+#define DD_DIRECT_IO 0x00000001
+#define DD_SYNC_IO 0x00000002
+#define DD_WRITE 0x00000004
+#define DD_OPLOCK 0x00000008
+
+struct dd_iohandle * dd_open_path(const char * path,
+ uint64_t iosz, int options);
+BOOL dd_fill_block(struct dd_iohandle * h, uint8_t * buf,
+ uint64_t * bufsz, uint64_t needsz, uint64_t blocksz);
+BOOL dd_flush_block(struct dd_iohandle * h, uint8_t * buf,
+ uint64_t * bufsz, uint64_t blocksz);
+
+/* vim: set sw=8 sts=8 ts=8 tw=79 : */
--- /dev/null
+/*
+ CIFSDD - dd for SMB.
+ IO routines, generic and specific.
+
+ Copyright (C) James Peach 2005-2006
+
+ 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"
+#include "system/filesys.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/libcli.h"
+#include "lib/cmdline/popt_common.h"
+
+#include "cifsdd.h"
+
+/* ------------------------------------------------------------------------- */
+/* UNIX file descriptor IO. */
+/* ------------------------------------------------------------------------- */
+
+struct fd_handle
+{
+ struct dd_iohandle h;
+ int fd;
+};
+
+#define IO_HANDLE_TO_FD(h) (((struct fd_handle *)(h))->fd)
+
+static BOOL fd_seek_func(void * handle, uint64_t offset)
+{
+ ssize_t ret;
+
+ ret = lseek(IO_HANDLE_TO_FD(handle), offset, SEEK_SET);
+ if (ret < 0) {
+ fprintf(stderr, "%s: seek failed: %s\n",
+ PROGNAME, strerror(errno));
+ return(False);
+ }
+
+ return(True);
+}
+
+static BOOL fd_read_func(void * handle, uint8_t * buf, uint64_t wanted, uint64_t * actual)
+{
+ ssize_t ret;
+
+ ret = read(IO_HANDLE_TO_FD(handle), buf, wanted);
+ if (ret < 0) {
+ fprintf(stderr, "%s: %llu byte read failed: %s\n",
+ PROGNAME, (unsigned long long)wanted, strerror(errno));
+ return(False);
+ }
+
+ *actual = (uint64_t)ret;
+ return(True);
+}
+
+static BOOL
+fd_write_func(void * handle, uint8_t * buf, uint64_t wanted, uint64_t * actual)
+{
+ ssize_t ret;
+
+ ret = write(IO_HANDLE_TO_FD(handle), buf, wanted);
+ if (ret < 0) {
+ fprintf(stderr, "%s: %llu byte write failed: %s\n",
+ PROGNAME, (unsigned long long)wanted, strerror(errno));
+ return(False);
+ }
+
+ *actual = (uint64_t)ret;
+ return(True);
+}
+
+static struct dd_iohandle *
+open_fd_handle(const char * path, uint64_t iosz, int options)
+{
+ struct fd_handle * fdh;
+ int oflags = 0;
+
+ DEBUG(4, ("opening fd stream for %s\n", path));
+ if ((fdh = talloc_zero(NULL, struct fd_handle)) == NULL) {
+ return(NULL);
+ }
+
+ fdh->h.io_read = fd_read_func;
+ fdh->h.io_write = fd_write_func;
+ fdh->h.io_seek = fd_seek_func;
+
+ if (options & DD_DIRECT_IO)
+ oflags |= O_DIRECT;
+
+ if (options & DD_SYNC_IO)
+ oflags |= O_SYNC;
+
+ oflags |= (options & DD_WRITE) ? (O_WRONLY | O_CREAT) : (O_RDONLY);
+
+ fdh->fd = open(path, oflags, 0644);
+ if (fdh->fd < 0) {
+ fprintf(stderr, "%s: %s: %s\n",
+ PROGNAME, path, strerror(errno));
+ talloc_free(fdh);
+ return(NULL);
+ }
+
+ if (options & DD_OPLOCK) {
+ DEBUG(2, ("FIXME: take local oplock on %s\n", path));
+ }
+
+ SMB_ASSERT((void *)fdh == (void *)&fdh->h);
+ return(&fdh->h);
+}
+
+/* ------------------------------------------------------------------------- */
+/* CIFS client IO. */
+/* ------------------------------------------------------------------------- */
+
+struct smb_handle
+{
+ struct dd_iohandle h;
+ struct smbcli_state * cli;
+ int fnum;
+ uint64_t offset;
+};
+
+#define IO_HANDLE_TO_SMB(h) ((struct smb_handle *)(h))
+
+BOOL smb_seek_func(void * handle, uint64_t offset)
+{
+ IO_HANDLE_TO_SMB(handle)->offset = offset;
+ return(True);
+}
+
+BOOL smb_read_func(void * handle, uint8_t * buf,
+ uint64_t wanted, uint64_t * actual)
+{
+ NTSTATUS ret;
+ union smb_read r;
+ struct smb_handle * smbh;
+
+ ZERO_STRUCT(r);
+ smbh = IO_HANDLE_TO_SMB(handle);
+
+ r.generic.level = RAW_READ_READX;
+ r.readx.in.fnum = smbh->fnum;
+ r.readx.in.offset = smbh->offset;
+ r.readx.in.mincnt = wanted;
+ r.readx.in.maxcnt = wanted;
+ r.readx.out.data = buf;
+
+ /* FIXME: Should I really set readx.in.remaining? That just seems
+ * redundant.
+ */
+ ret = smb_raw_read(smbh->cli->tree, &r);
+ if (!NT_STATUS_IS_OK(ret)) {
+ fprintf(stderr, "%s: %llu byte read failed: %s\n",
+ PROGNAME, (unsigned long long)wanted, nt_errstr(ret));
+ return(False);
+ }
+
+ /* Trap integer wrap. */
+ SMB_ASSERT((smbh->offset + r.readx.out.nread) >= smbh->offset);
+
+ *actual = r.readx.out.nread;
+ smbh->offset += r.readx.out.nread;
+ return(True);
+}
+
+BOOL smb_write_func(void * handle, uint8_t * buf,
+ uint64_t wanted, uint64_t * actual)
+{
+ NTSTATUS ret;
+ union smb_write w;
+ struct smb_handle * smbh;
+
+ ZERO_STRUCT(w);
+ smbh = IO_HANDLE_TO_SMB(handle);
+
+ w.generic.level = RAW_WRITE_WRITEX;
+ w.writex.in.fnum = smbh->fnum;
+ w.writex.in.offset = smbh->offset;
+ w.writex.in.count = wanted;
+ w.writex.in.data = buf;
+
+ ret = smb_raw_write(smbh->cli->tree, &w);
+ if (!NT_STATUS_IS_OK(ret)) {
+ fprintf(stderr, "%s: %llu byte write failed: %s\n",
+ PROGNAME, (unsigned long long)wanted, nt_errstr(ret));
+ return(False);
+ }
+
+ *actual = w.writex.out.nwritten;
+ smbh->offset += w.writex.out.nwritten;
+ return(True);
+}
+
+static struct smbcli_state * init_smb_session(const char * host, const char * share)
+{
+ NTSTATUS ret;
+ struct smbcli_state * cli = NULL;
+
+ /* When we support SMB URLs, we can get different user credentials for
+ * each connection, but for now, we just use the same one for both.
+ */
+ ret = smbcli_full_connection(NULL, &cli, host, share,
+ NULL /* devtype */, cmdline_credentials, NULL /* events */);
+
+ if (!NT_STATUS_IS_OK(ret)) {
+ fprintf(stderr, "%s: connecting to //%s/%s: %s\n",
+ PROGNAME, host, share, nt_errstr(ret));
+ return(NULL);
+ }
+
+ return(cli);
+}
+
+static int open_smb_file(struct smbcli_state * cli, const char * path, int options)
+{
+ NTSTATUS ret;
+ union smb_open o;
+
+ ZERO_STRUCT(o);
+
+ o.ntcreatex.level = RAW_OPEN_NTCREATEX;
+ o.ntcreatex.in.fname = path;
+
+ /* TODO: It's not clear whether to use these flags or to use the
+ * similarly named NTCREATEX flags in the create_options field.
+ */
+ if (options & DD_DIRECT_IO)
+ o.ntcreatex.in.flags |= FILE_FLAG_NO_BUFFERING;
+
+ if (options & DD_SYNC_IO)
+ o.ntcreatex.in.flags |= FILE_FLAG_WRITE_THROUGH;
+
+ o.ntcreatex.in.access_mask |=
+ (options & DD_WRITE) ? SEC_FILE_WRITE_DATA
+ : SEC_FILE_READ_DATA;
+
+ /* Try to create the file only if we will be writing to it. */
+ o.ntcreatex.in.open_disposition =
+ (options & DD_WRITE) ? NTCREATEX_DISP_OPEN_IF
+ : NTCREATEX_DISP_OPEN;
+
+ o.ntcreatex.in.share_access =
+ NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE;
+
+ if (options & DD_OPLOCK) {
+ o.ntcreatex.in.flags |= NTCREATEX_FLAGS_REQUEST_OPLOCK;
+ }
+
+ ret = smb_raw_open(cli->tree, NULL, &o);
+ if (!NT_STATUS_IS_OK(ret)) {
+ fprintf(stderr, "%s: opening %s: %s\n",
+ PROGNAME, path, nt_errstr(ret));
+ return(-1);
+ }
+
+ return(o.ntcreatex.out.fnum);
+}
+
+static struct dd_iohandle * open_smb_handle(const char * host, const char * share,
+ const char * path, uint64_t iosz, int options)
+{
+ struct smb_handle * smbh;
+
+ DEBUG(4, ("opening SMB stream to //%s/%s for %s\n",
+ host, share, path));
+
+ if ((smbh = talloc_zero(NULL, struct smb_handle)) == NULL) {
+ return(NULL);
+ }
+
+ smbh->h.io_read = smb_read_func;
+ smbh->h.io_write = smb_write_func;
+ smbh->h.io_seek = smb_seek_func;
+
+ if ((smbh->cli = init_smb_session(host, share)) == NULL) {
+ return(NULL);
+ }
+
+ DEBUG(4, ("connected to //%s/%s with xmit size of %u bytes\n",
+ host, share, smbh->cli->transport->negotiate.max_xmit));
+
+ smbh->fnum = open_smb_file(smbh->cli, path, options);
+ return(&smbh->h);
+}
+
+/* ------------------------------------------------------------------------- */
+/* Abstract IO interface. */
+/* ------------------------------------------------------------------------- */
+
+struct dd_iohandle * dd_open_path(const char * path, uint64_t iosz, int options)
+{
+ if (file_exist(path)) {
+ return(open_fd_handle(path, iosz, options));
+ } else {
+ char * host;
+ char * share;
+
+ if (smbcli_parse_unc(path, NULL, &host, &share)) {
+ const char * remain;
+ remain = strstr(path, share) + strlen(share);
+
+ /* Skip over leading directory separators. */
+ while (*remain == '/' || *remain == '\\') { remain++; }
+
+ return(open_smb_handle(host, share, remain,
+ iosz, options));
+ }
+
+ return(open_fd_handle(path, iosz, options));
+ }
+}
+
+/* Fill the buffer till it has at least needsz bytes. Use read operations of
+ * blocksz bytes. Return the number of bytes read and fill bufsz with the new
+ * buffer size.
+ *
+ * NOTE: The IO buffer is guaranteed to be big enough to fit needsz + blocksz
+ * bytes into it.
+ */
+BOOL dd_fill_block(struct dd_iohandle * h, uint8_t * buf,
+ uint64_t * bufsz, uint64_t needsz, uint64_t blocksz)
+{
+ uint64_t readsz;
+
+ SMB_ASSERT(blocksz > 0);
+ SMB_ASSERT(needsz > 0);
+
+ while (*bufsz < needsz) {
+
+ if (!h->io_read(h, buf + (*bufsz), blocksz, &readsz)) {
+ return(False);
+ }
+
+ if (readsz == 0) {
+ h->io_flags |= DD_END_OF_FILE;
+ break;
+ }
+
+ DEBUG(6, ("added %llu bytes to IO buffer (need %llu bytes)\n",
+ (unsigned long long)readsz, (unsigned long long)needsz));
+
+ *bufsz += readsz;
+ dd_stats.in.bytes += readsz;
+
+ if (readsz == blocksz) {
+ dd_stats.in.fblocks++;
+ } else {
+ DEBUG(3, ("partial read of %llu bytes (expected %llu)\n",
+ (unsigned long long)readsz, (unsigned long long)blocksz));
+ dd_stats.in.pblocks++;
+ }
+ }
+
+ return(True);
+}
+
+/* Flush a buffer that contains bufsz bytes. Use writes of blocksz to do it,
+ * and shift any remaining bytes back to the head of the buffer when there are
+ * no more blocksz sized IOs left.
+ */
+BOOL dd_flush_block(struct dd_iohandle * h, uint8_t * buf,
+ uint64_t * bufsz, uint64_t blocksz)
+{
+ uint64_t writesz;
+ uint64_t totalsz = 0;
+
+ SMB_ASSERT(blocksz > 0);
+
+ /* We have explicitly been asked to write a partial block. */
+ if ((*bufsz) < blocksz) {
+
+ if (!h->io_write(h, buf, *bufsz, &writesz)) {
+ return(False);
+ }
+
+ if (writesz == 0) {
+ fprintf(stderr, "%s: unexpectedly wrote 0 bytes\n",
+ PROGNAME);
+ return(False);
+ }
+
+ totalsz += writesz;
+ dd_stats.out.bytes += writesz;
+ dd_stats.out.pblocks++;
+ }
+
+ /* Write as many full blocks as there are in the buffer. */
+ while (((*bufsz) - totalsz) >= blocksz) {
+
+ if (!h->io_write(h, buf + totalsz, blocksz, &writesz)) {
+ return(False);
+ }
+
+ if (writesz == 0) {
+ fprintf(stderr, "%s: unexpectedly wrote 0 bytes\n",
+ PROGNAME);
+ return(False);
+ }
+
+ if (writesz == blocksz) {
+ dd_stats.out.fblocks++;
+ } else {
+ dd_stats.out.pblocks++;
+ }
+
+ totalsz += writesz;
+ dd_stats.out.bytes += writesz;
+
+ DEBUG(6, ("flushed %llu bytes from IO buffer of %llu bytes (%llu remain)\n",
+ (unsigned long long)blocksz, (unsigned long long)blocksz,
+ (unsigned long long)(blocksz - totalsz)));
+ }
+
+ SMB_ASSERT(totalsz > 0);
+
+ /* We have flushed as much of the IO buffer as we can while
+ * still doing blocksz-sized operations. Shift any remaining data
+ * to the front of the IO buffer.
+ */
+ if ((*bufsz) > totalsz) {
+ uint64_t remain = (*bufsz) - totalsz;
+
+ DEBUG(3, ("shifting %llu remainder bytes to IO buffer head\n",
+ (unsigned long long)remain));
+
+ memmove(buf, buf + totalsz, remain);
+ (*bufsz) = remain;
+ } else if ((*bufsz) == totalsz) {
+ (*bufsz) = 0;
+ } else {
+ /* Else buffer contains bufsz bytes that we will append
+ * to next time round.
+ */
+ DEBUG(3, ("%llu unflushed bytes left in IO buffer\n",
+ (unsigned long long)(*bufsz)));
+ }
+
+ return(True);
+}
+
+/* vim: set sw=8 sts=8 ts=8 tw=79 : */
POPT_CREDENTIALS
# End BINARY smbclient
#################################
+
+#################################
+# Start BINARY cifsdd
+[BINARY::cifsdd]
+INSTALLDIR = BINDIR
+OBJ_FILES = \
+ cifsdd.o \
+ cifsddio.o
+REQUIRED_SUBSYSTEMS = \
+ CONFIG \
+ LIBSMB \
+ LIBPOPT \
+ POPT_SAMBA \
+ POPT_CREDENTIALS
+# End BINARY sdd
+#################################
+
Copyright (C) Andrew Tridgell 1992-2001
Copyright (C) Simo Sorce 2001-2002
Copyright (C) Martin Pool 2003
+ Copyright (C) James Peach 2005
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
return False;
}
+BOOL conv_str_bool(const char * str, BOOL * val)
+{
+ char * end = NULL;
+ long lval;
+
+ if (str == NULL || *str == '\0') {
+ return False;
+ }
+
+ lval = strtol(str, &end, 10 /* base */);
+ if (end == NULL || *end != '\0' || end == str) {
+ return set_boolean(str, val);
+ }
+
+ *val = (lval) ? True : False;
+ return True;
+}
+
+/* Convert a size specification like 16K into an integral number of bytes. */
+BOOL conv_str_size(const char * str, uint64_t * val)
+{
+ char * end = NULL;
+ unsigned long long lval;
+
+ if (str == NULL || *str == '\0') {
+ return False;
+ }
+
+ lval = strtoull(str, &end, 10 /* base */);
+ if (end == NULL || end == str) {
+ return False;
+ }
+
+ if (*end) {
+ if (strwicmp(end, "K") == 0) {
+ lval *= 1024ULL;
+ } else if (strwicmp(end, "M") == 0) {
+ lval *= (1024ULL * 1024ULL);
+ } else if (strwicmp(end, "G") == 0) {
+ lval *= (1024ULL * 1024ULL * 1024ULL);
+ } else if (strwicmp(end, "T") == 0) {
+ lval *= (1024ULL * 1024ULL * 1024ULL * 1024ULL);
+ } else if (strwicmp(end, "P") == 0) {
+ lval *= (1024ULL * 1024ULL * 1024ULL * 1024ULL * 1024ULL);
+ } else {
+ return False;
+ }
+ }
+
+ *val = (uint64_t)lval;
+ return True;
+}
+
+BOOL conv_str_u64(const char * str, uint64_t * val)
+{
+ char * end = NULL;
+ unsigned long long lval;
+
+ if (str == NULL || *str == '\0') {
+ return False;
+ }
+
+ lval = strtoull(str, &end, 10 /* base */);
+ if (end == NULL || *end != '\0' || end == str) {
+ return False;
+ }
+
+ *val = (uint64_t)lval;
+ return True;
+}
client connect/disconnect routines
Copyright (C) Andrew Tridgell 2003-2005
+ Copyright (C) James Peach 2005
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
return talloc_zero(mem_ctx, struct smbcli_state);
}
+/* Insert a NULL at the first separator of the given path and return a pointer
+ * to the location it was inserted at.
+ */
+static char *
+terminate_path_at_separator(char * path)
+{
+ char * p;
+
+ if ((p = strchr_m(path, '/'))) {
+ *p = '\0';
+ return(p);
+ }
+
+ if ((p = strchr_m(path, '\\'))) {
+ *p = '\0';
+ return(p);
+ }
+
+ /* No terminator. Return pointer to the last byte. */
+ return(p + strlen(path));
+}
+
/*
parse a //server/share type UNC name
*/
BOOL smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
- const char **hostname, const char **sharename)
+ char **hostname, char **sharename)
{
char *p;
}
*hostname = talloc_strdup(mem_ctx, &unc_name[2]);
- p = strchr_m(&(*hostname)[2],'/');
- if (!p) {
- p = strchr_m(&(*hostname)[2],'\\');
- if (!p) return False;
- }
- *p = 0;
+ p = terminate_path_at_separator(*hostname);
+
*sharename = talloc_strdup(mem_ctx, p+1);
+ p = terminate_path_at_separator(*sharename);
return True;
}
--- /dev/null
+#!/bin/sh
+
+# Basic script to make sure that cifsdd can do both local and remote I/O.
+
+if [ $# -lt 4 ]; then
+cat <<EOF
+Usage: test_cifsdd.sh SERVER USERNAME PASSWORD DOMAIN
+EOF
+exit 1;
+fi
+
+SERVER=$1
+USERNAME=$2
+PASSWORD=$3
+DOMAIN=$4
+
+DD=bin/cifsdd
+
+SHARE=tmp
+DEBUGLEVEL=4
+
+failed=0
+
+failtest() {
+ failed=`expr $failed + 1`
+}
+
+runcopy() {
+ message="$1"
+ shift
+
+ testit "$message" $DD --debuglevel=$DEBUGLEVEL -W "$DOMAIN" -U "$USERNAME"%"$PASSWORD" \
+ "$@"
+}
+
+compare() {
+ if [ -r $1 -a -r $2 ] ; then
+ sum1=`sum $1`
+ sum2=`sum $2`
+
+ [[ x"$sum1" = x"$sum2" ]]
+ else
+ false
+ fi
+}
+
+incdir=`dirname $0`
+. $incdir/test_functions.sh
+
+sourcepath=tempfile.src.$$
+destpath=tempfile.dst.$$
+
+# Create a source file with arbitrary contents
+cp $DD $sourcepath
+
+for bs in 512 4k 48k ; do
+
+echo "Testing $bs block size ..."
+
+# Check whether we can do local IO
+runcopy "Testing local -> local copy" if=$sourcepath of=$destpath bs=$bs || failtest
+compare $sourcepath $destpath || failtest
+
+# Check whether we can do a round trip
+runcopy "Testing local -> remote copy" \
+ if=$sourcepath of=//$SERVER/$SHARE/$sourcepath bs=$bs || failtest
+runcopy "Testing remote ->local copy" \
+ if=//$SERVER/$SHARE/$sourcepath of=$destpath bs=$bs || failtest
+compare $sourcepath $destpath || failtest
+
+# Check that copying within the remote server works
+runcopy "Testing local -> remote copy" \
+ if=//$SERVER/$SHARE/$sourcepath of=//$SERVER/$SHARE/$sourcepath bs=$bs || failtest
+runcopy "Testing remote -> remote copy" \
+ if=//$SERVER/$SHARE/$sourcepath of=//$SERVER/$SHARE/$destpath bs=$bs || failtest
+runcopy "Testing remote ->local copy" \
+ if=//$SERVER/$SHARE/$destpath of=$destpath bs=$bs || failtest
+compare $sourcepath $destpath || failtest
+
+done
+
+rm -f $sourcepath $destpath
+
+testok $0 $failed
$SRCDIR/script/tests/test_local.sh || failed=`expr $failed + $?`
$SRCDIR/script/tests/test_pidl.sh || failed=`expr $failed + $?`
$SRCDIR/script/tests/test_smbclient.sh $SERVER $USERNAME $PASSWORD $DOMAIN $PREFIX || failed=`expr $failed + $?`
+ $SRCDIR/script/tests/test_cifsdd.sh $SERVER $USERNAME $PASSWORD $DOMAIN || failed=`expr $failed + $?`
--- /dev/null
+ $SRCDIR/script/tests/test_smbclient.sh $SERVER $USERNAME $PASSWORD $DOMAIN $PREFIX || failed=`expr $failed + $?`
+ $SRCDIR/script/tests/test_cifsdd.sh $SERVER $USERNAME $PASSWORD $DOMAIN || failed=`expr $failed + $?`
git.samba.org / kai / samba.git / commitdiff