diff --git a/usr.sbin/efitable/efitable.c b/usr.sbin/efitable/efitable.c index 367ce3f033b1..6bd4d96ffd2a 100644 --- a/usr.sbin/efitable/efitable.c +++ b/usr.sbin/efitable/efitable.c @@ -1,239 +1,239 @@ /*- * Copyright (c) 2021 3mdeb Embedded Systems Consulting * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define TABLE_MAX_LEN 30 #define EFITABLE_XO_VERSION "1" static void efi_table_print_esrt(const void *data); static void efi_table_print_prop(const void *data); static void usage(void); struct efi_table_op { char name[TABLE_MAX_LEN]; void (*parse) (const void *); struct uuid uuid; }; static const struct efi_table_op efi_table_ops[] = { { .name = "esrt", .parse = efi_table_print_esrt, .uuid = EFI_TABLE_ESRT }, { .name = "prop", .parse = efi_table_print_prop, .uuid = EFI_PROPERTIES_TABLE } }; int main(int argc, char **argv) { struct efi_get_table_ioc table = { .buf = NULL, .buf_len = 0, .table_len = 0 }; int efi_fd, ch, rc = 1, efi_idx = -1; bool got_table = false; bool table_set = false; bool uuid_set = false; struct option longopts[] = { { "uuid", required_argument, NULL, 'u' }, { "table", required_argument, NULL, 't' }, { NULL, 0, NULL, 0 } }; argc = xo_parse_args(argc, argv); if (argc < 0) exit(EXIT_FAILURE); while ((ch = getopt_long(argc, argv, "u:t:", longopts, NULL)) != -1) { switch (ch) { case 'u': { char *uuid_str = optarg; struct uuid uuid; uint32_t status; uuid_set = 1; uuid_from_string(uuid_str, &uuid, &status); if (status != uuid_s_ok) xo_errx(EX_DATAERR, "invalid UUID"); for (size_t n = 0; n < nitems(efi_table_ops); n++) { if (!memcmp(&uuid, &efi_table_ops[n].uuid, sizeof(uuid))) { efi_idx = n; got_table = true; break; } } break; } case 't': { char *table_name = optarg; table_set = true; for (size_t n = 0; n < nitems(efi_table_ops); n++) { if (!strcmp(table_name, efi_table_ops[n].name)) { efi_idx = n; got_table = true; break; } } if (!got_table) xo_errx(EX_DATAERR, "unsupported efi table"); break; } default: usage(); } } if (!table_set && !uuid_set) xo_errx(EX_USAGE, "table is not set"); if (!got_table) xo_errx(EX_DATAERR, "unsupported table"); efi_fd = open("/dev/efi", O_RDWR); if (efi_fd < 0) xo_err(EX_OSFILE, "/dev/efi"); table.uuid = efi_table_ops[efi_idx].uuid; if (ioctl(efi_fd, EFIIOC_GET_TABLE, &table) == -1) - xo_err(EX_OSERR, NULL); + xo_err(EX_OSERR, "EFIIOC_GET_TABLE (len == 0)"); table.buf = malloc(table.table_len); table.buf_len = table.table_len; if (ioctl(efi_fd, EFIIOC_GET_TABLE, &table) == -1) - xo_err(EX_OSERR, NULL); + xo_err(EX_OSERR, "EFIIOC_GET_TABLE"); efi_table_ops[efi_idx].parse(table.buf); close(efi_fd); return (rc); } static void efi_table_print_esrt(const void *data) { const struct efi_esrt_entry_v1 *entries_v1; const struct efi_esrt_table *esrt; esrt = (const struct efi_esrt_table *)data; xo_set_version(EFITABLE_XO_VERSION); xo_open_container("esrt"); xo_emit("{Lwc:FwResourceCount}{:fw_resource_count/%u}\n", esrt->fw_resource_count); xo_emit("{Lwc:FwResourceCountMax}{:fw_resource_count_max/%u}\n", esrt->fw_resource_count_max); xo_emit("{Lwc:FwResourceVersion}{:fw_resource_version/%u}\n", esrt->fw_resource_version); xo_open_list("entries"); xo_emit("\nEntries:\n"); entries_v1 = (const void *) esrt->entries; for (uint32_t i = 0; i < esrt->fw_resource_count; i++) { const struct efi_esrt_entry_v1 *e = &entries_v1[i]; uint32_t status; char *uuid; uuid_to_string(&e->fw_class, &uuid, &status); if (status != uuid_s_ok) { xo_errx(EX_DATAERR, "uuid_to_string error"); } xo_open_instance("entries"); xo_emit("\n"); xo_emit("{P: }{Lwc:FwClass}{:fw_class/%s}\n", uuid); xo_emit("{P: }{Lwc:FwType}{:fw_type/%u}\n", e->fw_type); xo_emit("{P: }{Lwc:FwVersion}{:fw_version/%u}\n", e->fw_version); xo_emit("{P: }{Lwc:LowestSupportedFwVersion}" "{:lowest_supported_fw_version/%u}\n", e->lowest_supported_fw_version); xo_emit("{P: }{Lwc:CapsuleFlags}{:capsule_flags/%#x}\n", e->capsule_flags); xo_emit("{P: }{Lwc:LastAttemptVersion" "}{:last_attempt_version/%u}\n", e->last_attempt_version); xo_emit("{P: }{Lwc:LastAttemptStatus" "}{:last_attempt_status/%u}\n", e->last_attempt_status); xo_close_instance("entries"); } xo_close_list("entries"); xo_close_container("esrt"); xo_finish(); } static void efi_table_print_prop(const void *data) { const struct efi_prop_table *prop; prop = (const struct efi_prop_table *)data; xo_set_version(EFITABLE_XO_VERSION); xo_open_container("prop"); xo_emit("{Lwc:Version}{:version/%#x}\n", prop->version); xo_emit("{Lwc:Length}{:length/%u}\n", prop->length); xo_emit("{Lwc:MemoryProtectionAttribute}" "{:memory_protection_attribute/%#lx}\n", prop->memory_protection_attribute); xo_close_container("prop"); xo_finish(); } static void usage(void) { xo_error("usage: efitable [-d uuid | -t name] [--libxo]\n"); exit(EX_USAGE); }