]> git.ozlabs.org Git - petitboot/blobdiff - discover/boot.c
discover/boot: Fix log message with no newline
[petitboot] / discover / boot.c
index e57810d54d46a10687c0182d9004d63b0349d188..583d141ddc440ccaa45ae80288d664e65ec44828 100644 (file)
@@ -11,6 +11,7 @@
 
 #include <log/log.h>
 #include <pb-protocol/pb-protocol.h>
+#include <process/process.h>
 #include <system/system.h>
 #include <talloc/talloc.h>
 #include <url/url.h>
@@ -53,20 +54,22 @@ static int kexec_load(struct boot_task *boot_task)
        *p++ = "-l";                    /* 2 */
 
        if (boot_task->local_initrd) {
-               s_initrd = talloc_asprintf(NULL, "--initrd=%s",
+               s_initrd = talloc_asprintf(boot_task, "--initrd=%s",
                                boot_task->local_initrd);
                assert(s_initrd);
                *p++ = s_initrd;         /* 3 */
        }
 
        if (boot_task->local_dtb) {
-               s_dtb = talloc_asprintf(NULL, "--dtb=%s", boot_task->local_dtb);
+               s_dtb = talloc_asprintf(boot_task, "--dtb=%s",
+                                               boot_task->local_dtb);
                assert(s_dtb);
                *p++ = s_dtb;            /* 4 */
        }
 
        if (boot_task->args) {
-               s_args = talloc_asprintf(NULL, "--append=%s", boot_task->args);
+               s_args = talloc_asprintf(boot_task, "--append=%s",
+                                               boot_task->args);
                assert(s_args);
                *p++ = s_args;          /* 5 */
        }
@@ -74,15 +77,11 @@ static int kexec_load(struct boot_task *boot_task)
        *p++ = boot_task->local_image;  /* 6 */
        *p++ = NULL;                    /* 7 */
 
-       result = pb_run_cmd(argv, 1, boot_task->dry_run);
+       result = process_run_simple_argv(boot_task, argv);
 
        if (result)
                pb_log("%s: failed: (%d)\n", __func__, result);
 
-       talloc_free(s_initrd);
-       talloc_free(s_dtb);
-       talloc_free(s_args);
-
        return result;
 }
 
@@ -92,31 +91,18 @@ static int kexec_load(struct boot_task *boot_task)
  * Must only be called after a successful call to kexec_load().
  */
 
-static int kexec_reboot(bool dry_run)
+static int kexec_reboot(struct boot_task *task)
 {
-       int result = 0;
-       const char *argv[4];
-       const char **p;
+       int result;
 
        /* First try running shutdown.  Init scripts should run 'exec -e' */
-
-       p = argv;
-       *p++ = pb_system_apps.shutdown; /* 1 */
-       *p++ =  "-r";                   /* 2 */
-       *p++ =  "now";                  /* 3 */
-       *p++ =  NULL;                   /* 4 */
-
-       result = pb_run_cmd(argv, 1, dry_run);
+       result = process_run_simple(task, pb_system_apps.shutdown, "-r",
+                       "now", NULL);
 
        /* On error, force a kexec with the -e option */
-
        if (result) {
-               p = argv;
-               *p++ = pb_system_apps.kexec;    /* 1 */
-               *p++ = "-e";                    /* 2 */
-               *p++ = NULL;                    /* 3 */
-
-               result = pb_run_cmd(argv, 1, 0);
+               result = process_run_simple(task, pb_system_apps.kexec,
+                                               "-e", NULL);
        }
 
        if (result)
@@ -124,13 +110,8 @@ static int kexec_reboot(bool dry_run)
 
        /* okay, kexec -e -f */
        if (result) {
-               p = argv;
-               *p++ = pb_system_apps.kexec;    /* 1 */
-               *p++ = "-e";                    /* 2 */
-               *p++ = "-f";                    /* 3 */
-               *p++ = NULL;                    /* 4 */
-
-               result = pb_run_cmd(argv, 1, 0);
+               result = process_run_simple(task, pb_system_apps.kexec,
+                                               "-e", "-f", NULL);
        }
 
        if (result)
@@ -176,8 +157,8 @@ static void boot_hook_update_param(void *ctx, struct boot_task *task,
        }
 }
 
-static void boot_hook_update(void *ctx, const char *hookname,
-               struct boot_task *task, char *buf)
+static void boot_hook_update(struct boot_task *task, const char *hookname,
+               char *buf)
 {
        char *line, *name, *val, *sep;
        char *saveptr;
@@ -196,7 +177,7 @@ static void boot_hook_update(void *ctx, const char *hookname,
                name = line;
                val = sep + 1;
 
-               boot_hook_update_param(ctx, task, name, val);
+               boot_hook_update_param(task, task, name, val);
 
                pb_log("boot hook %s specified %s=%s\n",
                                hookname, name, val);
@@ -229,8 +210,8 @@ static int hook_cmp(const struct dirent **a, const struct dirent **b)
        return strcmp((*a)->d_name, (*b)->d_name);
 }
 
-static void run_boot_hooks(void *ctx, struct boot_task *task,
-               boot_status_fn status_fn, void *status_arg)
+static void run_boot_hooks(struct boot_task *task, boot_status_fn status_fn,
+               void *status_arg)
 {
        struct dirent **hooks;
        int i, n;
@@ -246,29 +227,44 @@ static void run_boot_hooks(void *ctx, struct boot_task *task,
 
        for (i = 0; i < n; i++) {
                const char *argv[2] = { NULL, NULL };
-               char *path, *buf;
-               int buf_len, rc;
+               struct process *process;
+               char *path;
+               int rc;
 
-               path = join_paths(ctx, boot_hook_dir, hooks[i]->d_name);
+               path = join_paths(task, boot_hook_dir, hooks[i]->d_name);
 
-               if (access(path, X_OK))
+               if (access(path, X_OK)) {
+                       talloc_free(path);
                        continue;
+               }
 
-               pb_log("running boot hook %s\n", hooks[i]->d_name);
+               process = process_create(task);
 
                argv[0] = path;
-               rc = pb_run_cmd_pipe(argv, 1, task->dry_run, ctx,
-                               &buf, &buf_len);
-
-               /* if the hook returned with BOOT_HOOK_EXIT_UPDATE,
-                * then we process stdout to look for updated params
-                */
-               if (rc == BOOT_HOOK_EXIT_UPDATE) {
-                       boot_hook_update(ctx, hooks[i]->d_name, task, buf);
-                       boot_hook_setenv(task);
+               process->path = path;
+               process->argv = argv;
+               process->keep_stdout = true;
+
+               pb_log("running boot hook %s\n", hooks[i]->d_name);
+
+               rc = process_run_sync(process);
+               if (rc) {
+                       pb_log("boot hook exec failed!\n");
+
+               } else if (WIFEXITED(process->exit_status) &&
+                          WEXITSTATUS(process->exit_status)
+                               == BOOT_HOOK_EXIT_UPDATE) {
+                       /* if the hook returned with BOOT_HOOK_EXIT_UPDATE,
+                        * then we process stdout to look for updated params
+                        */
+                       if (rc == BOOT_HOOK_EXIT_UPDATE) {
+                               boot_hook_update(task, hooks[i]->d_name,
+                                               process->stdout_buf);
+                               boot_hook_setenv(task);
+                       }
                }
 
-               talloc_free(buf);
+               process_release(process);
                talloc_free(path);
        }
 
@@ -278,7 +274,7 @@ static void run_boot_hooks(void *ctx, struct boot_task *task,
 int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
                int dry_run, boot_status_fn status_fn, void *status_arg)
 {
-       struct boot_task boot_task;
+       struct boot_task *boot_task;
        struct pb_url *image, *initrd, *dtb;
        unsigned int clean_image = 0;
        unsigned int clean_initrd = 0;
@@ -288,17 +284,19 @@ int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
        image = NULL;
        initrd = NULL;
        dtb = NULL;
-       boot_task.dry_run = dry_run;
 
        if (cmd && cmd->boot_image_file) {
                image = pb_url_parse(opt, cmd->boot_image_file);
        } else if (opt && opt->boot_image) {
                image = opt->boot_image->url;
        } else {
-               pb_log("%s: no image specified", __func__);
+               pb_log("%s: no image specified\n", __func__);
                return -1;
        }
 
+       boot_task = talloc_zero(ctx, struct boot_task);
+       boot_task->dry_run = dry_run;
+
        if (cmd && cmd->initrd_file) {
                initrd = pb_url_parse(opt, cmd->initrd_file);
        } else if (opt && opt->initrd) {
@@ -312,22 +310,20 @@ int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
        }
 
        if (cmd && cmd->boot_args) {
-               boot_task.args = talloc_strdup(ctx, cmd->boot_args);
+               boot_task->args = talloc_strdup(boot_task, cmd->boot_args);
        } else if (opt && opt->option->boot_args) {
-               boot_task.args = talloc_strdup(ctx, opt->option->boot_args);
+               boot_task->args = talloc_strdup(boot_task,
+                                               opt->option->boot_args);
        } else {
-               boot_task.args = NULL;
+               boot_task->args = NULL;
        }
 
        result = -1;
 
-       boot_task.local_initrd = NULL;
-       boot_task.local_dtb = NULL;
-
        update_status(status_fn, status_arg, BOOT_STATUS_INFO,
                        "loading kernel");
-       boot_task.local_image = load_url(NULL, image, &clean_image);
-       if (!boot_task.local_image) {
+       boot_task->local_image = load_url(NULL, image, &clean_image);
+       if (!boot_task->local_image) {
                update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
                                "Couldn't load kernel image");
                goto no_load;
@@ -336,8 +332,8 @@ int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
        if (initrd) {
                update_status(status_fn, status_arg, BOOT_STATUS_INFO,
                                "loading initrd");
-               boot_task.local_initrd = load_url(NULL, initrd, &clean_initrd);
-               if (!boot_task.local_initrd) {
+               boot_task->local_initrd = load_url(NULL, initrd, &clean_initrd);
+               if (!boot_task->local_initrd) {
                        update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
                                        "Couldn't load initrd image");
                        goto no_load;
@@ -347,20 +343,20 @@ int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
        if (dtb) {
                update_status(status_fn, status_arg, BOOT_STATUS_INFO,
                                "loading device tree");
-               boot_task.local_dtb = load_url(NULL, dtb, &clean_dtb);
-               if (!boot_task.local_dtb) {
+               boot_task->local_dtb = load_url(NULL, dtb, &clean_dtb);
+               if (!boot_task->local_dtb) {
                        update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
                                        "Couldn't load device tree");
                        goto no_load;
                }
        }
 
-       run_boot_hooks(ctx, &boot_task, status_fn, status_arg);
+       run_boot_hooks(boot_task, status_fn, status_arg);
 
        update_status(status_fn, status_arg, BOOT_STATUS_INFO,
                        "performing kexec_load");
 
-       result = kexec_load(&boot_task);
+       result = kexec_load(boot_task);
 
        if (result) {
                update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
@@ -369,21 +365,17 @@ int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
 
 no_load:
        if (clean_image)
-               unlink(boot_task.local_image);
+               unlink(boot_task->local_image);
        if (clean_initrd)
-               unlink(boot_task.local_initrd);
+               unlink(boot_task->local_initrd);
        if (clean_dtb)
-               unlink(boot_task.local_dtb);
-
-       talloc_free(boot_task.local_image);
-       talloc_free(boot_task.local_initrd);
-       talloc_free(boot_task.local_dtb);
+               unlink(boot_task->local_dtb);
 
        if (!result) {
                update_status(status_fn, status_arg, BOOT_STATUS_INFO,
                                "performing kexec reboot");
 
-               result = kexec_reboot(boot_task.dry_run);
+               result = kexec_reboot(boot_task);
 
                if (result) {
                        update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
@@ -391,5 +383,7 @@ no_load:
                }
        }
 
+       talloc_free(boot_task);
+
        return result;
 }