X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fuser-event.c;h=1257796494e5211f01d210a11565c9539a6bffca;hp=d7e0d195035efa43202137de78d57bfb78fd3da8;hb=c78f9ec47ba92b74698dacdae963dbbefd9b676f;hpb=08e967ee301b502b2114e3855210a0b2600d095c

diff --git a/discover/user-event.c b/discover/user-event.c
index d7e0d19..1257796 100644
--- a/discover/user-event.c
+++ b/discover/user-event.c
@@ -20,7 +20,6 @@
 #include "config.h"
 #endif
 
-#define _GNU_SOURCE
 #include <assert.h>
 #include <errno.h>
 #include <string.h>
@@ -38,6 +37,7 @@
 #include "resource.h"
 #include "event.h"
 #include "user-event.h"
+#include "sysinfo.h"
 
 
 #define MAC_ADDR_SIZE	6
@@ -55,8 +55,16 @@ static const char *event_action_name(enum event_action action)
 		return "add";
 	case EVENT_ACTION_REMOVE:
 		return "remove";
+	case EVENT_ACTION_URL:
+		return "url";
 	case EVENT_ACTION_DHCP:
 		return "dhcp";
+	case EVENT_ACTION_BOOT:
+		return "boot";
+	case EVENT_ACTION_SYNC:
+		return "sync";
+	case EVENT_ACTION_PLUGIN:
+		return "plugin";
 	default:
 		break;
 	}
@@ -77,7 +85,7 @@ static void user_event_print_event(struct event __attribute__((unused)) *event)
 }
 
 static struct resource *user_event_resource(struct discover_boot_option *opt,
-		struct event *event)
+		struct event *event, bool gen_boot_args_sigfile)
 {
 	const char *siaddr, *boot_file;
 	struct resource *res;
@@ -86,17 +94,26 @@ static struct resource *user_event_resource(struct discover_boot_option *opt,
 
 	siaddr = event_get_param(event, "siaddr");
 	if (!siaddr) {
-		pb_log("%s: next server option not found\n", __func__);
+		pb_log_fn("next server option not found\n");
 		return NULL;
 	}
 
-	boot_file = event_get_param(event, "boot_file");
+	boot_file = event_get_param(event, "bootfile");
 	if (!boot_file) {
-		pb_log("%s: boot_file not found\n", __func__);
+		pb_log_fn("bootfile not found\n");
 		return NULL;
 	}
 
-	url_str = talloc_asprintf(opt, "%s%s/%s", "tftp://", siaddr, boot_file);
+	if (gen_boot_args_sigfile) {
+		char* args_sigfile_default = talloc_asprintf(opt,
+			"%s.cmdline.sig", boot_file);
+		url_str = talloc_asprintf(opt, "%s%s/%s", "tftp://", siaddr,
+			args_sigfile_default);
+		talloc_free(args_sigfile_default);
+	}
+	else
+		url_str = talloc_asprintf(opt, "%s%s/%s", "tftp://", siaddr,
+			boot_file);
 	url = pb_url_parse(opt, url_str);
 	talloc_free(url_str);
 
@@ -131,19 +148,20 @@ static int parse_user_event(struct discover_context *ctx, struct event *event)
 	val = event_get_param(event, "name");
 
 	if (!val) {
-		pb_log("%s: no name found\n", __func__);
+		pb_log_fn("no name found\n");
 		goto fail_opt;
 	}
 
 	opt->id = talloc_asprintf(opt, "%s#%s", dev->id, val);
 	opt->name = talloc_strdup(opt, val);
 
-	d_opt->boot_image = user_event_resource(d_opt, event);
+	d_opt->boot_image = user_event_resource(d_opt, event, false);
 	if (!d_opt->boot_image) {
-		pb_log("%s: no boot image found for %s!\n", __func__,
+		pb_log_fn("no boot image found for %s!\n",
 				opt->name);
 		goto fail_opt;
 	}
+	d_opt->args_sig_file = user_event_resource(d_opt, event, true);
 
 	val = event_get_param(event, "rootpath");
 	if (val) {
@@ -209,7 +227,7 @@ static char *parse_mac_addr(struct discover_context *ctx, const char *mac)
 			mac_addr_arr + 2, mac_addr_arr + 3, mac_addr_arr + 4,
 			mac_addr_arr + 5);
 
-	mac_addr = talloc_asprintf(ctx, "01-%02X-%02X-%02X-%02X-%02X-%02X",
+	mac_addr = talloc_asprintf(ctx, "01-%02x-%02x-%02x-%02x-%02x-%02x",
 			mac_addr_arr[0], mac_addr_arr[1], mac_addr_arr[2],
 			mac_addr_arr[3], mac_addr_arr[4], mac_addr_arr[5]);
 
@@ -231,62 +249,92 @@ static char *parse_ip_addr(struct discover_context *ctx, const char *ip)
 }
 
 struct pb_url *user_event_parse_conf_url(struct discover_context *ctx,
-		struct event *event)
+		struct event *event, bool *is_complete)
 {
-	const char *conffile, *host, *bootfile;
+	const char *conffile, *pathprefix, *host, *bootfile, *bootfile_url;
 	char *p, *basedir, *url_str;
 	struct pb_url *url;
 
 	conffile = event_get_param(event, "pxeconffile");
-	if (conffile) {
-		if (is_url(conffile)) {
-			url = pb_url_parse(ctx, conffile);
-		} else {
-			host = parse_host_addr(event);
-			if (!host) {
-				pb_log("%s: host address not found\n",
-						__func__);
-				return NULL;
-			}
-
-			url_str = talloc_asprintf(ctx, "%s%s/%s", "tftp://",
-					host, conffile);
-			url = pb_url_parse(ctx, url_str);
+	pathprefix = event_get_param(event, "pxepathprefix");
+	bootfile = event_get_param(event, "bootfile");
+	bootfile_url = event_get_param(event, "bootfile_url");
+
+	/* If we're given a conf file, we're able to generate a complete URL to
+	 * the configuration file, and the parser doesn't need to do any
+	 * further autodiscovery */
+	*is_complete = !!conffile;
+
+	/* if conffile is a URL, that's all we need */
+	if (conffile && is_url(conffile)) {
+		url = pb_url_parse(ctx, conffile);
+		return url;
+	}
 
+	/* If we can create a URL from pathprefix (optionally with
+	 * conffile appended to create a complete URL), use that */
+	if (pathprefix && is_url(pathprefix)) {
+		if (conffile) {
+			url_str = talloc_asprintf(ctx, "%s%s",
+					pathprefix, conffile);
+			url = pb_url_parse(ctx, url_str);
 			talloc_free(url_str);
+		} else {
+			url = pb_url_parse(ctx, pathprefix);
 		}
 
-		ctx->conf_url = url;
-	} else {
-		host = parse_host_addr(event);
-		if (!host) {
-			pb_log("%s: host address not found\n", __func__);
-			return NULL;
-		}
+		return url;
+	}
+
+	host = parse_host_addr(event);
+	if (!host) {
+		pb_log_fn("host address not found\n");
 
-		bootfile = event_get_param(event, "bootfile");
-		if (!bootfile) {
-			pb_log("%s: bootfile param not found\n", __func__);
-			return NULL;
+		/* No full URLs and no host address? Check for DHCPv6 options */
+		if (bootfile_url && is_url(bootfile_url)) {
+			*is_complete = true;
+			return pb_url_parse(ctx, bootfile_url);
 		}
+		return NULL;
+	}
+
+	url_str = talloc_asprintf(ctx, "tftp://%s/", host);
+
+	/* if we have a pathprefix, use that directly.. */
+	if (pathprefix) {
+		/* strip leading slashes */
+		while (pathprefix[0] == '/')
+			pathprefix++;
+		url_str = talloc_asprintf_append(url_str, "%s", pathprefix);
+
+	/* ... otherwise, add a path based on the bootfile name, but only
+	 * if conffile isn't an absolute path itself */
+	} else if (bootfile && !(conffile && conffile[0] == '/')) {
 
 		basedir = talloc_strdup(ctx, bootfile);
-		p = strchr(basedir, '/');
-		if (p)
-			*p = '\0';
 
-		if (!strcmp(basedir,"") || !strcmp(basedir, "."))
-			url_str = talloc_asprintf(ctx, "%s%s/", "tftp://",host);
-		else
-			url_str = talloc_asprintf(ctx, "%s%s/%s/", "tftp://",host,
-					basedir);
+		/* strip filename from the bootfile path, leaving only a
+		 * directory */
+		p = strrchr(basedir, '/');
+		if (!p)
+			p = basedir;
+		*p = '\0';
 
-		url = pb_url_parse(ctx, url_str);
+		if (strlen(basedir))
+			url_str = talloc_asprintf_append(url_str, "%s/",
+					basedir);
 
-		talloc_free(url_str);
 		talloc_free(basedir);
 	}
 
+	/* finally, append conffile */
+	if (conffile)
+		url_str = talloc_asprintf_append(url_str, "%s", conffile);
+
+	url = pb_url_parse(ctx, url_str);
+
+	talloc_free(url_str);
+
 	return url;
 }
 
@@ -314,7 +362,7 @@ char **user_event_parse_conf_filenames(
 	}
 
 	if (!mac_addr && !ip_hex) {
-		pb_log("%s: neither mac nor ip parameter found\n", __func__);
+		pb_log_fn("neither mac nor ip parameter found\n");
 		return NULL;
 	}
 
@@ -347,31 +395,29 @@ static int user_event_dhcp(struct user_event *uev, struct event *event)
 	struct device_handler *handler = uev->handler;
 	struct discover_device *dev;
 
-	dev = discover_device_create(handler, event->device);
-
-	device_handler_dhcp(handler, dev, event);
-
-	return 0;
-}
+	uint8_t hwaddr[MAC_ADDR_SIZE];
 
-static int user_event_conf(struct user_event *uev, struct event *event)
-{
-	struct device_handler *handler = uev->handler;
-	struct discover_device *dev;
-	struct pb_url *url;
-	const char *val;
+	if (!event_get_param(event, "mac"))
+		return -1;
+	if (!event_get_param(event, "ip") && !event_get_param(event, "ipv6"))
+		return -1;
 
-	val = event_get_param(event, "url");
-	if (!val)
-		return 0;
+	sscanf(event_get_param(event, "mac"),
+	       "%hhX:%hhX:%hhX:%hhX:%hhX:%hhX",
+	       hwaddr, hwaddr + 1, hwaddr + 2,
+	       hwaddr + 3, hwaddr + 4, hwaddr + 5);
 
-	url = pb_url_parse(event, val);
-	if (!url)
-		return 0;
+	if (event_get_param(event, "ipv6"))
+		system_info_set_interface_address(sizeof(hwaddr), hwaddr,
+						  event_get_param(event, "ipv6"));
+	else
+		system_info_set_interface_address(sizeof(hwaddr), hwaddr,
+						  event_get_param(event, "ip"));
 
-	dev = discover_device_create(handler, event->device);
+	dev = discover_device_create(handler, event_get_param(event, "mac"),
+					event->device);
 
-	device_handler_conf(handler, dev, url);
+	device_handler_dhcp(handler, dev, event);
 
 	return 0;
 }
@@ -381,11 +427,19 @@ static int user_event_add(struct user_event *uev, struct event *event)
 	struct device_handler *handler = uev->handler;
 	struct discover_context *ctx;
 	struct discover_device *dev;
+	int rc;
 
-	dev = discover_device_create(handler, event->device);
+	/* In case this is a network interface, try to refer to it by UUID */
+	dev = discover_device_create(handler, event_get_param(event, "mac"),
+					event->device);
+	dev->device->id = talloc_strdup(dev, event->device);
 	ctx = device_handler_discover_context_create(handler, dev);
 
-	parse_user_event(ctx, event);
+	rc = parse_user_event(ctx, event);
+	if (rc) {
+		pb_log("parse_user_event returned %d\n", rc);
+		return rc;
+	}
 
 	device_handler_discover_context_commit(handler, ctx);
 
@@ -398,8 +452,13 @@ static int user_event_remove(struct user_event *uev, struct event *event)
 {
 	struct device_handler *handler = uev->handler;
 	struct discover_device *dev;
+	const char *mac = event_get_param(event, "mac");
+
+	if (mac)
+		dev = device_lookup_by_uuid(handler, event_get_param(event, "mac"));
+	else
+		dev = device_lookup_by_id(handler, event->device);
 
-	dev = device_lookup_by_id(handler, event->device);
 	if (!dev)
 		return 0;
 
@@ -408,6 +467,153 @@ static int user_event_remove(struct user_event *uev, struct event *event)
 	return 0;
 }
 
+static int user_event_url(struct user_event *uev, struct event *event)
+{
+	struct device_handler *handler = uev->handler;
+	const char *url;
+
+	url = event_get_param(event, "url");
+	if (url)
+		device_handler_process_url(handler, url, NULL, NULL);
+
+	return 0;
+}
+
+static int user_event_boot(struct user_event *uev, struct event *event)
+{
+	struct device_handler *handler = uev->handler;
+	struct boot_command *cmd = talloc(handler, struct boot_command);
+
+	cmd->option_id = talloc_strdup(cmd, event_get_param(event, "id"));
+	cmd->boot_image_file = talloc_strdup(cmd, event_get_param(event, "image"));
+	cmd->initrd_file = talloc_strdup(cmd, event_get_param(event, "initrd"));
+	cmd->dtb_file = talloc_strdup(cmd, event_get_param(event, "dtb"));
+	cmd->boot_args = talloc_strdup(cmd, event_get_param(event, "args"));
+
+	device_handler_boot(handler, cmd);
+
+	talloc_free(cmd);
+
+	return 0;
+}
+
+static int user_event_sync(struct user_event *uev, struct event *event)
+{
+	struct device_handler *handler = uev->handler;
+
+	if (strncasecmp(event->device, "all", strlen("all")) != 0)
+		device_sync_snapshots(handler, event->device);
+	else
+		device_sync_snapshots(handler, NULL);
+
+	return 0;
+}
+
+static int process_uninstalled_plugin(struct user_event *uev,
+		struct event *event)
+{
+	struct device_handler *handler = uev->handler;
+	struct discover_boot_option *file_opt;
+	struct discover_device *device;
+	struct discover_context *ctx;
+	const char *path;
+	struct resource *res;
+
+	if (!event_get_param(event, "path")) {
+		pb_log("Uninstalled pb-plugin event missing path param\n");
+		return -1;
+	}
+
+	device = device_lookup_by_name(handler, event->device);
+	if (!device) {
+		pb_log("Couldn't find device matching %s for plugin\n",
+				event->device);
+		return -1;
+	}
+
+	ctx = device_handler_discover_context_create(handler, device);
+	file_opt = discover_boot_option_create(ctx, device);
+	file_opt->option->name = talloc_strdup(file_opt,
+			event_get_param(event, "name"));
+	file_opt->option->id = talloc_asprintf(file_opt, "%s@%p",
+			device->device->id, file_opt);
+	file_opt->option->type = DISCOVER_PLUGIN_OPTION;
+
+
+	path = event_get_param(event, "path");
+	/* path may be relative to root */
+	if (strncmp(device->mount_path, path, strlen(device->mount_path)) == 0) {
+		path += strlen(device->mount_path) + 1;
+	}
+
+	res = talloc(file_opt, struct resource);
+	resolve_resource_against_device(res, device, path);
+	file_opt->boot_image = res;
+
+	discover_context_add_boot_option(ctx, file_opt);
+	device_handler_discover_context_commit(handler, ctx);
+
+	return 0;
+}
+
+/*
+ * Notification of a plugin event. This can either be for an uninstalled plugin
+ * that pb-plugin has scanned, or the result of a plugin that pb-plugin has
+ * installed.
+ */
+static int user_event_plugin(struct user_event *uev, struct event *event)
+{
+	struct device_handler *handler = uev->handler;
+	char *executable, *executables, *saveptr;
+	struct plugin_option *opt;
+	const char *installed;
+
+	installed = event_get_param(event, "installed");
+	if (!installed || strncmp(installed, "no", strlen("no")) == 0)
+		return process_uninstalled_plugin(uev, event);
+
+	opt = talloc_zero(handler, struct plugin_option);
+	if (!opt)
+		return -1;
+	opt->name = talloc_strdup(opt, event_get_param(event, "name"));
+	opt->id = talloc_strdup(opt, event_get_param(event, "id"));
+	opt->version = talloc_strdup(opt, event_get_param(event, "version"));
+	opt->vendor = talloc_strdup(opt, event_get_param(event, "vendor"));
+	opt->vendor_id = talloc_strdup(opt, event_get_param(event, "vendor_id"));
+	opt->date = talloc_strdup(opt, event_get_param(event, "date"));
+	opt->plugin_file = talloc_strdup(opt,
+			event_get_param(event, "source_file"));
+
+	executables = talloc_strdup(opt, event_get_param(event, "executables"));
+	if (!executables) {
+		talloc_free(opt);
+		return -1;
+	}
+
+	/*
+	 * The 'executables' parameter is a space-delimited list of installed
+	 * executables
+	 */
+	executable = strtok_r(executables, " ", &saveptr);
+	while (executable) {
+		opt->executables = talloc_realloc(opt, opt->executables,
+						  char *, opt->n_executables + 1);
+		if (!opt->executables) {
+			talloc_free(opt);
+			return -1;
+		}
+		opt->executables[opt->n_executables++] = talloc_strdup(opt,
+								executable);
+		executable = strtok_r(NULL, " ", &saveptr);
+	}
+
+	device_handler_add_plugin_option(handler, opt);
+
+	talloc_free(executables);
+
+	return 0;
+}
+
 static void user_event_handle_message(struct user_event *uev, char *buf,
 	int len)
 {
@@ -431,39 +637,52 @@ static void user_event_handle_message(struct user_event *uev, char *buf,
 	case EVENT_ACTION_REMOVE:
 		result = user_event_remove(uev, event);
 		break;
-	case EVENT_ACTION_CONF:
-		result = user_event_conf(uev, event);
-		break;
+	case EVENT_ACTION_URL:
+		result = user_event_url(uev, event);
+		goto out;
 	case EVENT_ACTION_DHCP:
 		result = user_event_dhcp(uev, event);
+		goto out;
+	case EVENT_ACTION_BOOT:
+		result = user_event_boot(uev, event);
+		break;
+	case EVENT_ACTION_SYNC:
+		result = user_event_sync(uev, event);
+		break;
+	case EVENT_ACTION_PLUGIN:
+		result = user_event_plugin(uev, event);
 		break;
 	default:
 		break;
 	}
 
+	/* user_event_url() and user_event_dhcp() will steal the event context,
+	 * but all others still need to free */
 	talloc_free(event);
-
+out:
 	return;
 }
 
 static int user_event_process(void *arg)
 {
 	struct user_event *uev = arg;
-	char buf[PBOOT_USER_EVENT_SIZE];
+	char buf[PBOOT_USER_EVENT_SIZE + 1];
 	int len;
 
-	len = recvfrom(uev->socket, buf, sizeof(buf), 0, NULL, NULL);
+	len = recvfrom(uev->socket, buf, PBOOT_USER_EVENT_SIZE, 0, NULL, NULL);
 
 	if (len < 0) {
-		pb_log("%s: socket read failed: %s", __func__, strerror(errno));
+		pb_log_fn("socket read failed: %s\n", strerror(errno));
 		return 0;
 	}
 
 	if (len == 0) {
-		pb_log("%s: empty", __func__);
+		pb_log_fn("empty\n");
 		return 0;
 	}
 
+	buf[len] = '\0';
+
 	pb_debug("%s: %u bytes\n", __func__, len);
 
 	user_event_handle_message(uev, buf, len);
@@ -483,15 +702,15 @@ static int user_event_destructor(void *arg)
 	return 0;
 }
 
-struct user_event *user_event_init(struct waitset *waitset,
-		struct device_handler *handler)
+struct user_event *user_event_init(struct device_handler *handler,
+		struct waitset *waitset)
 {
 	struct sockaddr_un addr;
 	struct user_event *uev;
 
 	unlink(PBOOT_USER_EVENT_SOCKET);
 
-	uev = talloc(NULL, struct user_event);
+	uev = talloc(handler, struct user_event);
 
 	uev->handler = handler;
 
@@ -524,8 +743,3 @@ out_err:
 	talloc_free(uev);
 	return NULL;
 }
-
-void user_event_destroy(struct user_event *uev)
-{
-	talloc_free(uev);
-}