+#define _GNU_SOURCE
-#include "parser.h"
-#include "params.h"
-#include "paths.h"
-#include "yaboot-cfg.h"
-
+#include <assert.h>
#include <stdlib.h>
-#include <stdio.h>
#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
#include <ctype.h>
-#include <sys/param.h>
-static struct device *dev;
-static char *devpath;
-static char *defimage;
+#include "log/log.h"
+#include "talloc/talloc.h"
+#include "types/types.h"
+#include "parser-conf.h"
+#include "parser-utils.h"
+#include "resource.h"
+
+struct yaboot_state {
+ int globals_done;
+ const char *const *known_names;
+
+ /* current option data */
+ struct discover_boot_option *opt;
+ const char *device;
+ const char *partition;
+ const char *boot_image;
+ const char *initrd;
+ const char *initrd_size;
+ const char *literal;
+ const char *ramdisk;
+ const char *root;
+ bool read_only;
+ bool read_write;
+};
-char *
-make_params(char *label, char *params)
+static struct discover_boot_option *state_start_new_option(
+ struct conf_context *conf,
+ struct yaboot_state *state)
{
- char *p, *q;
- static char buffer[2048];
-
- q = buffer;
- *q = 0;
-
- p = cfg_get_strg(label, "literal");
- if (p) {
- strcpy(q, p);
- q = strchr(q, 0);
- if (params) {
- if (*p)
- *q++ = ' ';
- strcpy(q, params);
- }
- return buffer;
- }
-
- p = cfg_get_strg(label, "root");
- if (p) {
- strcpy (q, "root=");
- strcpy (q + 5, p);
- q = strchr (q, 0);
- *q++ = ' ';
- }
- if (cfg_get_flag(label, "read-only")) {
- strcpy (q, "ro ");
- q += 3;
- }
- if (cfg_get_flag(label, "read-write")) {
- strcpy (q, "rw ");
- q += 3;
- }
- p = cfg_get_strg(label, "ramdisk");
- if (p) {
- strcpy (q, "ramdisk=");
- strcpy (q + 8, p);
- q = strchr (q, 0);
- *q++ = ' ';
- }
- p = cfg_get_strg(label, "initrd-size");
- if (p) {
- strcpy (q, "ramdisk_size=");
- strcpy (q + 13, p);
- q = strchr (q, 0);
- *q++ = ' ';
- }
- if (cfg_get_flag(label, "novideo")) {
- strcpy (q, "video=ofonly");
- q = strchr (q, 0);
- *q++ = ' ';
- }
- p = cfg_get_strg (label, "append");
- if (p) {
- strcpy (q, p);
- q = strchr (q, 0);
- *q++ = ' ';
- }
- *q = 0;
- if (params)
- strcpy(q, params);
-
- return buffer;
+ state->opt = discover_boot_option_create(conf->dc, conf->dc->device);
+ state->opt->option->boot_args = talloc_strdup(state->opt->option, "");
+
+ /* old allocated values will get freed with the state */
+ state->device = conf_get_global_option(conf, "device");
+ state->partition = conf_get_global_option(conf, "partition");
+ state->initrd_size = conf_get_global_option(conf, "initrd_size");
+ state->literal = conf_get_global_option(conf, "literal");
+ state->ramdisk = conf_get_global_option(conf, "ramdisk");
+ state->root = conf_get_global_option(conf, "root");
+
+ return state->opt;
}
-static int check_and_add_device(struct device *dev)
+static struct resource *create_yaboot_devpath_resource(
+ struct yaboot_state *state,
+ struct conf_context *conf,
+ const char *path)
{
- if (!dev->icon_file)
- dev->icon_file = strdup(generic_icon_file(guess_device_type()));
+ struct discover_boot_option *opt = state->opt;
+ const char *dev, *part, *devpos;
+ struct resource *res;
+ char *devpath, *devstr;
+
+ dev = state->device;
+ part = state->partition;
+
+ if (!dev)
+ dev = conf_get_global_option(conf, "device");
+ if (!part)
+ part = conf_get_global_option(conf, "partition");
+
+ if (strchr(path, ':')) {
+ devpath = talloc_strdup(conf, path);
+
+ } else if (dev && part) {
+ devpos = &dev[strlen(dev) - 1];
+ if (isdigit(*devpos)) {
+ while (isdigit(*devpos))
+ devpos--;
+
+ devstr = talloc_strndup(conf, dev, devpos - dev + 1);
+ devpath = talloc_asprintf(conf, "%s%s:%s", devstr,
+ part, path);
+ talloc_free(devstr);
+ } else {
+ devpath = talloc_asprintf(conf,
+ "%s%s:%s", dev, part, path);
+ }
+ } else if (dev) {
+ devpath = talloc_asprintf(conf, "%s:%s", dev, path);
+ } else {
+ devpath = talloc_strdup(conf, path);
+ }
+
+ res = create_devpath_resource(opt, conf->dc->device, devpath);
- return !add_device(dev);
+ talloc_free(devpath);
+
+ return res;
}
-void process_image(char *label)
+static void yaboot_finish(struct conf_context *conf)
{
- struct boot_option opt;
- char *cfgopt;
+ struct yaboot_state *state = conf->parser_info;
+ const char *default_label;
+ struct boot_option *opt;
+
+ assert(state->opt);
+
+ opt = state->opt->option;
+ assert(opt);
+ assert(opt->name);
+ assert(opt->boot_args);
+
+ /* populate the boot option from state data */
+ state->opt->boot_image = create_yaboot_devpath_resource(state,
+ conf, state->boot_image);
+ if (state->initrd) {
+ state->opt->initrd = create_yaboot_devpath_resource(state,
+ conf, state->initrd);
+ }
+
+ if (state->initrd_size) {
+ opt->boot_args = talloc_asprintf(opt, "ramdisk_size=%s %s",
+ state->initrd_size, opt->boot_args);
+ }
- memset(&opt, 0, sizeof(opt));
+ if (state->ramdisk) {
+ opt->boot_args = talloc_asprintf(opt, "ramdisk=%s %s",
+ state->initrd_size, opt->boot_args);
+ }
- opt.name = label;
- cfgopt = cfg_get_strg(label, "image");
- opt.boot_image_file = resolve_path(cfgopt, devpath);
- if (cfgopt == defimage)
- pb_log("This one is default. What do we do about it?\n");
+ if (state->root) {
+ opt->boot_args = talloc_asprintf(opt, "root=%s %s",
+ state->root, opt->boot_args);
+ }
- cfgopt = cfg_get_strg(label, "initrd");
- if (cfgopt)
- opt.initrd_file = resolve_path(cfgopt, devpath);
+ if (state->read_only && state->read_write) {
+ pb_log("boot option %s specified both 'ro' and 'rw', "
+ "using 'rw'\n", opt->name);
+ state->read_only = false;
+ }
- opt.boot_args = make_params(label, NULL);
+ if (state->read_only || state->read_write) {
+ opt->boot_args = talloc_asprintf(opt, "%s %s",
+ state->read_only ? "ro" : "rw",
+ opt->boot_args);
+ }
- add_boot_option(&opt);
+ if (state->literal) {
+ opt->boot_args = talloc_strdup(opt, state->literal);
+ }
- if (opt.initrd_file)
- free(opt.initrd_file);
+ opt->description = talloc_asprintf(opt, "%s %s %s",
+ state->boot_image,
+ (state->initrd ? state->initrd : ""),
+ opt->boot_args ? opt->boot_args : "");
+
+ conf_strip_str(opt->boot_args);
+ conf_strip_str(opt->description);
+
+ default_label = conf_get_global_option(conf, "default");
+ if (default_label &&
+ !strcasecmp(state->opt->option->name, default_label))
+ state->opt->option->is_default = true;
+
+ discover_context_add_boot_option(conf->dc, state->opt);
}
-static int yaboot_parse(const char *device)
+static void yaboot_process_pair(struct conf_context *conf, const char *name,
+ char *value)
{
- char *filepath;
- char *conf_file;
- char *tmpstr;
- ssize_t conf_len;
- int fd;
- struct stat st;
- char *label;
-
- devpath = strdup(device);
-
- filepath = resolve_path("/etc/yaboot.conf", devpath);
-
- fd = open(filepath, O_RDONLY);
- if (fd < 0) {
- free(filepath);
- filepath = resolve_path("/yaboot.conf", devpath);
- fd = open(filepath, O_RDONLY);
-
- if (fd < 0)
- return 0;
- }
-
- if (fstat(fd, &st)) {
- close(fd);
- return 0;
- }
-
- conf_file = malloc(st.st_size+1);
- if (!conf_file) {
- close(fd);
- return 0;
- }
-
- conf_len = read(fd, conf_file, st.st_size);
- if (conf_len < 0) {
- close(fd);
- return 0;
- }
- conf_file[conf_len] = 0;
-
- close(fd);
-
- if (cfg_parse(filepath, conf_file, conf_len)) {
- pb_log("Error parsing yaboot.conf\n");
- return 0;
- }
-
- free(filepath);
-
- dev = malloc(sizeof(*dev));
- memset(dev, 0, sizeof(*dev));
- dev->id = strdup(devpath);
- if (cfg_get_strg(0, "init-message")) {
- char *newline;
- dev->description = strdup(cfg_get_strg(0, "init-message"));
- newline = strchr(dev->description, '\n');
- if (newline)
- *newline = 0;
- }
- dev->icon_file = strdup(generic_icon_file(guess_device_type()));
-
- /* If we have a 'partiton=' directive, update the default devpath
- * to use that instead of the current device */
- tmpstr = cfg_get_strg(0, "partition");
- if (tmpstr) {
- char *endp;
- int partnr = strtol(tmpstr, &endp, 10);
- if (endp != tmpstr && !*endp) {
- char *new_dev, *tmp;
-
- new_dev = malloc(strlen(devpath) + strlen(tmpstr) + 1);
- if (!new_dev)
- return 0;
-
- strcpy(new_dev, devpath);
-
- /* Strip digits (partition number) from string */
- endp = new_dev + strlen(devpath) - 1;
- while (isdigit(*endp))
- *(endp--) = 0;
-
- /* and add our own... */
- sprintf(endp + 1, "%d", partnr);
-
- tmp = devpath;
- devpath = parse_device_path(new_dev, devpath);
- free(tmp);
- free(new_dev);
+ struct yaboot_state *state = conf->parser_info;
+ struct discover_boot_option *opt = state->opt;
+ struct fixed_pair {
+ const char *image;
+ const char *initrd;
+ };
+ static const struct fixed_pair suse_fp32 = {
+ .image = "/suseboot/vmlinux32",
+ .initrd = "/suseboot/initrd32",
+ };
+ static const struct fixed_pair suse_fp64 = {
+ .image = "/suseboot/vmlinux64",
+ .initrd = "/suseboot/initrd64",
+ };
+ const struct fixed_pair *suse_fp;
+
+ /* fixup for bare values */
+
+ if (!name)
+ name = value;
+
+ if (!state->globals_done && conf_set_global_option(conf, name, value))
+ return;
+
+ if (!conf_param_in_list(state->known_names, name))
+ return;
+
+ state->globals_done = 1;
+
+ /* image */
+
+ if (streq(name, "image")) {
+
+ /* First finish any previous image. */
+ if (opt)
+ yaboot_finish(conf);
+
+ /* Then start the new image. */
+ opt = state_start_new_option(conf, state);
+
+ state->boot_image = talloc_strdup(state, value);
+
+ return;
+ }
+
+ /* Special processing for SUSE install CD. */
+
+ if (streq(name, "image[32bit]"))
+ suse_fp = &suse_fp32;
+ else if (streq(name, "image[64bit]"))
+ suse_fp = &suse_fp64;
+ else
+ suse_fp = NULL;
+
+ if (suse_fp) {
+ /* First finish any previous image. */
+ if (opt)
+ yaboot_finish(conf);
+
+ /* Then start the new image. */
+ opt = state_start_new_option(conf, state);
+
+ if (*value == '/') {
+ state->boot_image = talloc_strdup(state, value);
+ } else {
+ state->boot_image = talloc_strdup(state,
+ suse_fp->image);
+ state->initrd = talloc_strdup(state, suse_fp->initrd);
}
+
+ return;
+ }
+
+ /* all other processing requires an image */
+ if (!opt) {
+ pb_log("%s: unknown name: %s\n", __func__, name);
+ return;
+ }
+
+ /* initrd */
+ if (streq(name, "initrd")) {
+ state->initrd = talloc_strdup(state, value);
+ return;
+ }
+
+ /* label */
+ if (streq(name, "label")) {
+ opt->option->id = talloc_asprintf(opt->option, "%s#%s",
+ conf->dc->device->device->id, value);
+ opt->option->name = talloc_strdup(opt->option, value);
+ return;
+ }
+
+ /* args */
+ if (streq(name, "device")) {
+ printf("option device : %s", value);
+ state->device = talloc_strdup(state, value);
+ return;
+ }
+
+ if (streq(name, "parititon")) {
+ state->partition = talloc_strdup(state, value);
+ return;
+ }
+
+ if (streq(name, "append")) {
+ opt->option->boot_args = talloc_asprintf_append(
+ opt->option->boot_args, "%s ", value);
+ return;
+ }
+
+ if (streq(name, "initrd-size")) {
+ state->initrd_size = talloc_strdup(state, value);
+ return;
+ }
+
+ if (streq(name, "literal")) {
+ state->literal = talloc_strdup(state, value);
+ return;
+ }
+
+ if (streq(name, "ramdisk")) {
+ state->ramdisk = talloc_strdup(state, value);
+ return;
+ }
+
+ if (streq(name, "read-only")) {
+ state->read_only = true;
+ return;
+ }
+
+ if (streq(name, "read-write")) {
+ state->read_write = true;
+ return;
+ }
+
+ if (streq(name, "root")) {
+ state->root = talloc_strdup(state, value);
+ return;
}
- defimage = cfg_get_default();
- if (!defimage)
- return 0;
- defimage = cfg_get_strg(defimage, "image");
+ pb_log("%s: unknown name: %s\n", __func__, name);
+}
+
+static struct conf_global_option yaboot_global_options[] = {
+ { .name = "root" },
+ { .name = "device" },
+ { .name = "partition" },
+ { .name = "initrd" },
+ { .name = "initrd_size" },
+ { .name = "video" },
+ { .name = "literal" },
+ { .name = "ramdisk" },
+ { .name = "default" },
+ { .name = NULL },
+};
+
+static const char *const yaboot_conf_files[] = {
+ "/yaboot.conf",
+ "/yaboot.cnf",
+ "/etc/yaboot.conf",
+ "/etc/yaboot.cnf",
+ "/suseboot/yaboot.cnf",
+ "/YABOOT.CONF",
+ "/YABOOT.CNF",
+ "/ETC/YABOOT.CONF",
+ "/ETC/YABOOT.CNF",
+ "/SUSEBOOT/YABOOT.CNF",
+ NULL
+};
+
+static const char *yaboot_known_names[] = {
+ "append",
+ "image",
+ "image[64bit]", /* SUSE extension */
+ "image[32bit]", /* SUSE extension */
+ "initrd",
+ "initrd-size",
+ "label",
+ "literal",
+ "ramdisk",
+ "read-only",
+ "read-write",
+ "root",
+ "device",
+ "partition",
+ NULL
+};
+
+static int yaboot_parse(struct discover_context *dc)
+{
+ const char * const *filename;
+ struct yaboot_state *state;
+ struct conf_context *conf;
+ int len, rc;
+ char *buf;
+
+ /* Support block device boot only at present */
+ if (dc->event)
+ return -1;
+
+ conf = talloc_zero(dc, struct conf_context);
+
+ if (!conf)
+ return -1;
+
+ conf->dc = dc;
+ conf->global_options = yaboot_global_options,
+ conf_init_global_options(conf);
+ conf->get_pair = conf_get_pair_equal;
+ conf->process_pair = yaboot_process_pair;
+ conf->finish = yaboot_finish;
+ conf->parser_info = state = talloc_zero(conf, struct yaboot_state);
- label = cfg_next_image(NULL);
- if (!label || !check_and_add_device(dev))
- return 0;
+ state->known_names = yaboot_known_names;
- do {
- process_image(label);
- } while ((label = cfg_next_image(label)));
+ state->opt = NULL;
- return 1;
+ for (filename = yaboot_conf_files; *filename; filename++) {
+ rc = parser_request_file(dc, dc->device, *filename, &buf, &len);
+ if (rc)
+ continue;
+
+ conf_parse_buf(conf, buf, len);
+ talloc_free(buf);
+ }
+
+ talloc_free(conf);
+ return 0;
}
-struct parser yaboot_parser = {
- .name = "yaboot.conf parser",
- .priority = 99,
- .parse = yaboot_parse
+static struct parser yaboot_parser = {
+ .name = "yaboot",
+ .parse = yaboot_parse,
+ .resolve_resource = resolve_devpath_resource,
};
+
+register_parser(yaboot_parser);
projects / petitboot / blobdiff