Patchwork [15/24] petitboot: Add remote file loading routines

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Submitter Geoff Levand
Date April 13, 2009, 1:11 a.m.
Message ID <20090413011137.650450894@am.sony.com>
Download mbox | patch
Permalink /patch/25884/
State Accepted
Headers show

Comments

Geoff Levand - April 13, 2009, 1:11 a.m.
Create the new files loader.h and loader.c for loading remote
file specifed by its URL.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 rules.mk           |    2 
 ui/common/loader.c |  301 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 ui/common/loader.h |   24 ++++
 3 files changed, 326 insertions(+), 1 deletion(-)

Patch

--- a/rules.mk
+++ b/rules.mk
@@ -44,7 +44,7 @@  discover_objs =  discover/udev.o discove
 	discover/device-handler.o discover/paths.o discover/parser-utils.o
 
 # client objs
-ui_common_objs = ui/common/discover-client.o ui/common/url.o
+ui_common_objs = ui/common/discover-client.o ui/common/loader.o ui/common/url.o
 ncurses_objs =
 twin_objs = ui/twin/pb-twin.o
 
--- /dev/null
+++ b/ui/common/loader.c
@@ -0,0 +1,301 @@ 
+/*
+ *  Copyright (C) 2009 Sony Computer Entertainment Inc.
+ *  Copyright 2009 Sony Corp.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <stdlib.h>
+
+#include "log/log.h"
+#include <system/system.h>
+#include "talloc/talloc.h"
+#include "loader.h"
+#include "url.h"
+
+
+/**
+ * pb_local_name - Helper to create a unique local path name.
+ * @ctx: A talloc context.
+ *
+ * Returns the local file path in a talloc'ed character string on success,
+ * or NULL on error.
+ */
+
+static char *pb_local_name(void *ctx)
+{
+	char *tmp, *ret;
+
+	tmp = tempnam(NULL, "pb-");
+
+	if (!tmp)
+		return NULL;
+
+	ret = talloc_strdup(ctx, tmp);
+	free(tmp);
+
+	return ret;
+}
+
+/**
+ * pb_load_nfs - Mounts the NFS export and returns the local file path.
+ *
+ * Returns the local file path in a talloc'ed character string on success,
+ * or NULL on error.
+ */
+
+static char *pb_load_nfs(void *ctx, struct pb_url *url)
+{
+	int result;
+	const char *argv[8];
+	const char **p;
+	char *local;
+	char *opts;
+
+	local = pb_local_name(ctx);
+
+	if (!local)
+		return NULL;
+
+	result = pb_mkdir_recursive(local);
+
+	if (result)
+		goto fail;
+
+	opts = talloc_strdup(NULL, "ro,nolock,nodiratime");
+
+	if (url->port)
+		opts = talloc_asprintf_append(opts, ",port=%s", url->port);
+
+	p = argv;
+	*p++ = pb_system_apps.mount;	/* 1 */
+	*p++ = "-t";			/* 2 */
+	*p++ = "nfs";			/* 3 */
+	*p++ = opts;			/* 4 */
+	*p++ = url->host;		/* 5 */
+	*p++ = url->dir;		/* 6 */
+	*p++ = local;			/* 7 */
+	*p++ = NULL;			/* 8 */
+
+	result = pb_run_cmd(argv);
+
+	talloc_free(opts);
+
+	if (result)
+		goto fail;
+
+	local = talloc_asprintf_append(local,  "/%s", url->path);
+	pb_log("%s: local '%s'\n", __func__, local);
+
+	return local;
+
+fail:
+	pb_rmdir_recursive("/", local);
+	talloc_free(local);
+	return NULL;
+}
+
+/**
+ * pb_load_sftp - Loads a remote file via sftp and returns the local file path.
+ *
+ * Returns the local file path in a talloc'ed character string on success,
+ * or NULL on error.
+ */
+
+static char *pb_load_sftp(void *ctx, struct pb_url __attribute__((unused)) *url)
+{
+	int result;
+	const char *argv[5];
+	const char **p;
+	char *local;
+
+	local = pb_local_name(ctx);
+
+	if (!local)
+		return NULL;
+
+	p = argv;
+	*p++ = pb_system_apps.sftp;	/* 1 */
+	*p++ = url->host;		/* 2 */
+	*p++ = url->path;		/* 3 */
+	*p++ = local;			/* 4 */
+	*p++ = NULL;			/* 5 */
+
+	result = pb_run_cmd(argv);
+
+	if (result)
+		goto fail;
+
+	return local;
+
+fail:
+	talloc_free(local);
+	return NULL;
+}
+
+/**
+ * pb_load_tftp - Loads a remote file via tftp and returns the local file path.
+ *
+ * Returns the local file path in a talloc'ed character string on success,
+ * or NULL on error.
+ */
+
+static char *pb_load_tftp(void *ctx, struct pb_url *url)
+{
+	int result;
+	const char *argv[10];
+	const char **p;
+	char *local;
+
+	local = pb_local_name(ctx);
+
+	if (!local)
+		return NULL;
+
+	/* first try busybox tftp args */
+
+	p = argv;
+	*p++ = pb_system_apps.tftp;	/* 1 */
+	*p++ = "-g";			/* 2 */
+	*p++ = "-l";			/* 3 */
+	*p++ = local;			/* 4 */
+	*p++ = "-r";			/* 5 */
+	*p++ = url->path;		/* 6 */
+	*p++ = url->host;		/* 7 */
+	if (url->port)
+		*p++ = url->port;	/* 8 */
+	*p++ = NULL; 			/* 9 */
+
+	result = pb_run_cmd(argv);
+
+	if (!result)
+		return local;
+
+	/* next try tftp-hpa args */
+
+	p = argv;
+	*p++ = pb_system_apps.tftp;	/* 1 */
+	*p++ = "-m";			/* 2 */
+	*p++ = "binary";		/* 3 */
+	*p++ = url->host;		/* 4 */
+	if (url->port)
+		*p++ = url->port;	/* 5 */
+	*p++ = "-c";			/* 6 */
+	*p++ = "get";			/* 7 */
+	*p++ = url->path;		/* 8 */
+	*p++ = local;			/* 9 */
+	*p++ = NULL;			/* 10 */
+
+	result = pb_run_cmd(argv);
+
+	if (!result)
+		return local;
+
+	talloc_free(local);
+	return NULL;
+}
+
+enum wget_flags {
+	wget_empty = 0,
+	wget_no_check_certificate = 1,
+};
+
+/**
+ * pb_load_wget - Loads a remote file via wget and returns the local file path.
+ *
+ * Returns the local file path in a talloc'ed character string on success,
+ * or NULL on error.
+ */
+
+static char *pb_load_wget(void *ctx, struct pb_url *url, enum wget_flags flags)
+{
+	int result;
+	const char *argv[6];
+	const char **p;
+	char *local;
+
+	local = pb_local_name(ctx);
+
+	if (!local)
+		return NULL;
+
+	p = argv;
+	*p++ = pb_system_apps.wget;			/* 1 */
+	*p++ = "-O";					/* 2 */
+	*p++ = local;					/* 3 */
+	*p++ = url->full;				/* 4 */
+	if (flags & wget_no_check_certificate)
+		*p++ = "--no-check-certificate";	/* 5 */
+	*p++ = NULL;					/* 6 */
+
+	result = pb_run_cmd(argv);
+
+	if (result)
+		goto fail;
+
+	return local;
+
+fail:
+	talloc_free(local);
+	return NULL;
+}
+
+/**
+ * pb_load_file - Loads a remote file and returns the local file path.
+ * @ctx: The talloc context to associate with the returned string.
+ *
+ * Returns the local file path in a talloc'ed character string on success,
+ * or NULL on error.
+ */
+
+char *pb_load_file(void *ctx, const char *remote)
+{
+	char *local;
+	struct pb_url *url = pb_url_parse(NULL, remote);
+
+	if (!url)
+		return NULL;
+
+	switch (url->scheme) {
+	case pb_url_ftp:
+	case pb_url_http:
+		local = pb_load_wget(ctx, url, 0);
+		break;
+	case pb_url_https:
+		local = pb_load_wget(ctx, url,
+			wget_no_check_certificate);
+		break;
+	case pb_url_nfs:
+		local = pb_load_nfs(ctx, url);
+		break;
+	case pb_url_sftp:
+		local = pb_load_sftp(ctx, url);
+		break;
+	case pb_url_tftp:
+		local = pb_load_tftp(ctx, url);
+		break;
+	default:
+		local = talloc_strdup(ctx, url->full);
+		break;
+	}
+
+	talloc_free(url);
+	return local;
+}
--- /dev/null
+++ b/ui/common/loader.h
@@ -0,0 +1,24 @@ 
+/*
+ *  Copyright (C) 2009 Sony Computer Entertainment Inc.
+ *  Copyright 2009 Sony Corp.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#if !defined(_PB_FILE_LOADER_H)
+#define _PB_FILE_LOADER_H
+
+char *pb_load_file(void *ctx, const char *remote);
+
+#endif