X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/4a9a1f49c58fb0cbdd17ad3de2cc682aad3230b8..10578a257d94fb59449d0b0e441990c45a036ccc:/qemu-io.c diff --git a/qemu-io.c b/qemu-io.c index 2d119c28a6..83c48f4149 100644 --- a/qemu-io.c +++ b/qemu-io.c @@ -7,18 +7,18 @@ * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ -#include -#include -#include -#include +#include "qemu/osdep.h" #include #include #include "qemu-io.h" +#include "qemu/error-report.h" #include "qemu/main-loop.h" #include "qemu/option.h" #include "qemu/config-file.h" #include "qemu/readline.h" +#include "qapi/qmp/qstring.h" +#include "sysemu/block-backend.h" #include "block/block_int.h" #include "trace/control.h" @@ -26,7 +26,7 @@ static char *progname; -static BlockDriverState *qemuio_bs; +static BlockBackend *qemuio_blk; /* qemu-io commands passed using -c */ static int ncmdline; @@ -34,10 +34,10 @@ static char **cmdline; static ReadLineState *readline_state; -static int close_f(BlockDriverState *bs, int argc, char **argv) +static int close_f(BlockBackend *blk, int argc, char **argv) { - bdrv_unref(bs); - qemuio_bs = NULL; + blk_unref(qemuio_blk); + qemuio_blk = NULL; return 0; } @@ -48,40 +48,45 @@ static const cmdinfo_t close_cmd = { .oneline = "close the current open file", }; -static int openfile(char *name, int flags, int growable, QDict *opts) +static int openfile(char *name, int flags, QDict *opts) { Error *local_err = NULL; + BlockDriverState *bs; - if (qemuio_bs) { - fprintf(stderr, "file open already, try 'help close'\n"); + if (qemuio_blk) { + error_report("file open already, try 'help close'"); + QDECREF(opts); return 1; } - if (growable) { - if (bdrv_open(&qemuio_bs, name, NULL, opts, flags | BDRV_O_PROTOCOL, - NULL, &local_err)) - { - fprintf(stderr, "%s: can't open device %s: %s\n", progname, name, - error_get_pretty(local_err)); - error_free(local_err); - return 1; + qemuio_blk = blk_new_open("hda", name, NULL, opts, flags, &local_err); + if (!qemuio_blk) { + error_reportf_err(local_err, "can't open%s%s: ", + name ? " device " : "", name ?: ""); + return 1; + } + + bs = blk_bs(qemuio_blk); + if (bdrv_is_encrypted(bs)) { + char password[256]; + printf("Disk image '%s' is encrypted.\n", name); + if (qemu_read_password(password, sizeof(password)) < 0) { + error_report("No password given"); + goto error; } - } else { - qemuio_bs = bdrv_new("hda"); - - if (bdrv_open(&qemuio_bs, name, NULL, opts, flags, NULL, &local_err) - < 0) - { - fprintf(stderr, "%s: can't open device %s: %s\n", progname, name, - error_get_pretty(local_err)); - error_free(local_err); - bdrv_unref(qemuio_bs); - qemuio_bs = NULL; - return 1; + if (bdrv_set_key(bs, password) < 0) { + error_report("invalid password"); + goto error; } } + return 0; + + error: + blk_unref(qemuio_blk); + qemuio_blk = NULL; + return 1; } static void open_help(void) @@ -97,12 +102,11 @@ static void open_help(void) " -r, -- open file read-only\n" " -s, -- use snapshot file\n" " -n, -- disable host cache\n" -" -g, -- allow file to grow (only applies to protocols)\n" " -o, -- options to be given to the block driver" "\n"); } -static int open_f(BlockDriverState *bs, int argc, char **argv); +static int open_f(BlockBackend *blk, int argc, char **argv); static const cmdinfo_t open_cmd = { .name = "open", @@ -118,6 +122,7 @@ static const cmdinfo_t open_cmd = { static QemuOptsList empty_opts = { .name = "drive", + .merge_lists = true, .head = QTAILQ_HEAD_INITIALIZER(empty_opts.head), .desc = { /* no elements => accept any params */ @@ -125,16 +130,15 @@ static QemuOptsList empty_opts = { }, }; -static int open_f(BlockDriverState *bs, int argc, char **argv) +static int open_f(BlockBackend *blk, int argc, char **argv) { int flags = 0; int readonly = 0; - int growable = 0; int c; QemuOpts *qopts; - QDict *opts = NULL; + QDict *opts; - while ((c = getopt(argc, argv, "snrgo:")) != EOF) { + while ((c = getopt(argc, argv, "snrgo:")) != -1) { switch (c) { case 's': flags |= BDRV_O_SNAPSHOT; @@ -145,19 +149,14 @@ static int open_f(BlockDriverState *bs, int argc, char **argv) case 'r': readonly = 1; break; - case 'g': - growable = 1; - break; case 'o': - qopts = qemu_opts_parse(&empty_opts, optarg, 0); - if (qopts == NULL) { - printf("could not parse option list -- %s\n", optarg); + if (!qemu_opts_parse_noisily(&empty_opts, optarg, false)) { + qemu_opts_reset(&empty_opts); return 0; } - opts = qemu_opts_to_qdict(qopts, opts); - qemu_opts_del(qopts); break; default: + qemu_opts_reset(&empty_opts); return qemuio_command_usage(&open_cmd); } } @@ -166,16 +165,21 @@ static int open_f(BlockDriverState *bs, int argc, char **argv) flags |= BDRV_O_RDWR; } + qopts = qemu_opts_find(&empty_opts, NULL); + opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL; + qemu_opts_reset(&empty_opts); + if (optind == argc - 1) { - return openfile(argv[optind], flags, growable, opts); + return openfile(argv[optind], flags, opts); } else if (optind == argc) { - return openfile(NULL, flags, growable, opts); + return openfile(NULL, flags, opts); } else { + QDECREF(opts); return qemuio_command_usage(&open_cmd); } } -static int quit_f(BlockDriverState *bs, int argc, char **argv) +static int quit_f(BlockBackend *blk, int argc, char **argv) { return 1; } @@ -193,22 +197,25 @@ static const cmdinfo_t quit_cmd = { static void usage(const char *name) { printf( -"Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n" +"Usage: %s [-h] [-V] [-rsnm] [-f FMT] [-c STRING] ... [file]\n" "QEMU Disk exerciser\n" "\n" -" -c, --cmd command to execute\n" +" -c, --cmd STRING execute command with its arguments\n" +" from the given string\n" +" -f, --format FMT specifies the block driver to use\n" " -r, --read-only export read-only\n" " -s, --snapshot use snapshot file\n" " -n, --nocache disable host cache\n" -" -g, --growable allow file to grow (only applies to protocols)\n" " -m, --misalign misalign allocations for O_DIRECT\n" " -k, --native-aio use kernel AIO implementation (on Linux only)\n" " -t, --cache=MODE use the given cache mode for the image\n" " -T, --trace FILE enable trace events listed in the given file\n" " -h, --help display this help and exit\n" " -V, --version output version information and exit\n" +"\n" +"See '%s -c help' for information on available commands." "\n", - name); + name, name); } static char *get_prompt(void) @@ -309,7 +316,7 @@ static void command_loop(void) char *input; for (i = 0; !done && i < ncmdline; i++) { - done = qemuio_command(qemuio_bs, cmdline[i]); + done = qemuio_command(qemuio_blk, cmdline[i]); } if (cmdline) { g_free(cmdline); @@ -334,7 +341,7 @@ static void command_loop(void) if (input == NULL) { break; } - done = qemuio_command(qemuio_bs, input); + done = qemuio_command(qemuio_blk, input); g_free(input); prompted = 0; @@ -345,7 +352,7 @@ static void command_loop(void) static void add_user_command(char *optarg) { - cmdline = g_realloc(cmdline, ++ncmdline * sizeof(char *)); + cmdline = g_renew(char *, cmdline, ++ncmdline); cmdline[ncmdline-1] = optarg; } @@ -357,18 +364,17 @@ static void reenable_tty_echo(void) int main(int argc, char **argv) { int readonly = 0; - int growable = 0; - const char *sopt = "hVc:d:rsnmgkt:T:"; + const char *sopt = "hVc:d:f:rsnmgkt:T:"; const struct option lopt[] = { { "help", 0, NULL, 'h' }, { "version", 0, NULL, 'V' }, { "offset", 1, NULL, 'o' }, { "cmd", 1, NULL, 'c' }, + { "format", 1, NULL, 'f' }, { "read-only", 0, NULL, 'r' }, { "snapshot", 0, NULL, 's' }, { "nocache", 0, NULL, 'n' }, { "misalign", 0, NULL, 'm' }, - { "growable", 0, NULL, 'g' }, { "native-aio", 0, NULL, 'k' }, { "discard", 1, NULL, 'd' }, { "cache", 1, NULL, 't' }, @@ -378,6 +384,8 @@ int main(int argc, char **argv) int c; int opt_index = 0; int flags = BDRV_O_UNMAP; + Error *local_error = NULL; + QDict *opts = NULL; #ifdef CONFIG_POSIX signal(SIGPIPE, SIG_IGN); @@ -386,6 +394,8 @@ int main(int argc, char **argv) progname = basename(argv[0]); qemu_init_exec_dir(argv[0]); + bdrv_init(); + while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { switch (c) { case 's': @@ -400,6 +410,12 @@ int main(int argc, char **argv) exit(1); } break; + case 'f': + if (!opts) { + opts = qdict_new(); + } + qdict_put(opts, "driver", qstring_from_str(optarg)); + break; case 'c': add_user_command(optarg); break; @@ -409,9 +425,6 @@ int main(int argc, char **argv) case 'm': qemuio_misalign = true; break; - case 'g': - growable = 1; - break; case 'k': flags |= BDRV_O_NATIVE_AIO; break; @@ -422,7 +435,7 @@ int main(int argc, char **argv) } break; case 'T': - if (!trace_backend_init(optarg, NULL)) { + if (!trace_init_backends()) { exit(1); /* error message will have been printed */ } break; @@ -443,8 +456,10 @@ int main(int argc, char **argv) exit(1); } - qemu_init_main_loop(); - bdrv_init(); + if (qemu_init_main_loop(&local_error)) { + error_report_err(local_error); + exit(1); + } /* initialize commands */ qemuio_add_command(&quit_cmd); @@ -466,7 +481,7 @@ int main(int argc, char **argv) } if ((argc - optind) == 1) { - openfile(argv[optind], flags, growable, NULL); + openfile(argv[optind], flags, opts); } command_loop(); @@ -475,9 +490,7 @@ int main(int argc, char **argv) */ bdrv_drain_all(); - if (qemuio_bs) { - bdrv_unref(qemuio_bs); - } + blk_unref(qemuio_blk); g_free(readline_state); return 0; }