wic: Add mic w/pykickstart

This is the starting point for the implemention described in [YOCTO
3847] which came to the conclusion that it would make sense to use
kickstart syntax to implement image creation in OpenEmbedded.  I
subsequently realized that there was an existing tool that already
implemented image creation using kickstart syntax, the Tizen/Meego mic
tool.  As such, it made sense to use that as a starting point - this
commit essentially just copies the relevant Python code from the MIC
tool to the scripts/lib dir, where it can be accessed by the
previously created wic tool.

Most of this will be removed or renamed by later commits, since we're
initially focusing on partitioning only.  Care should be taken so that
we can easily add back any additional functionality should we decide
later to expand the tool, though (we may also want to contribute our
local changes to the mic tool to the Tizen project if it makes sense,
and therefore should avoid gratuitous changes to the original code if
possible).

Added the /mic subdir from Tizen mic repo as a starting point:

 git clone git://review.tizen.org/tools/mic.git

 For reference, the top commit:

 commit 20164175ddc234a17b8a12c33d04b012347b1530
 Author: Gui Chen <gui.chen@intel.com>
 Date:   Sun Jun 30 22:32:16 2013 -0400

    bump up to 0.19.2

Also added the /plugins subdir, moved to under the /mic subdir (to
match the default plugin_dir location in mic.conf.in, which was
renamed to yocto-image.conf (moved and renamed by later patches) and
put into /scripts.

(From OE-Core rev: 31f0360f1fd4ebc9dfcaed42d1c50d2448b4632e)

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 183 insertions, 0 deletions

diff --git a/scripts/lib/mic/utils/proxy.py b/scripts/lib/mic/utils/proxy.py
new file mode 100644
index 0000000000..91451a2d01
--- /dev/null
+++ b/scripts/lib/mic/utils/proxy.py
@@ -0,0 +1,183 @@
+#!/usr/bin/python -tt
+#
+# Copyright (c) 2010, 2011 Intel, Inc.
+#
+# 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.
+
+import os
+import urlparse
+
+_my_proxies = {}
+_my_noproxy = None
+_my_noproxy_list = []
+
+def set_proxy_environ():
+    global _my_noproxy, _my_proxies
+    if not _my_proxies:
+        return
+    for key in _my_proxies.keys():
+        os.environ[key + "_proxy"] = _my_proxies[key]
+    if not _my_noproxy:
+        return
+    os.environ["no_proxy"] = _my_noproxy
+
+def unset_proxy_environ():
+    for env in ('http_proxy',
+                'https_proxy',
+                'ftp_proxy',
+                'all_proxy'):
+        if env in os.environ:
+            del os.environ[env]
+
+        ENV=env.upper()
+        if ENV in os.environ:
+            del os.environ[ENV]
+
+def _set_proxies(proxy = None, no_proxy = None):
+    """Return a dictionary of scheme -> proxy server URL mappings.
+    """
+
+    global _my_noproxy, _my_proxies
+    _my_proxies = {}
+    _my_noproxy = None
+    proxies = []
+    if proxy:
+        proxies.append(("http_proxy", proxy))
+    if no_proxy:
+        proxies.append(("no_proxy", no_proxy))
+
+    # Get proxy settings from environment if not provided
+    if not proxy and not no_proxy:
+        proxies = os.environ.items()
+
+        # Remove proxy env variables, urllib2 can't handle them correctly
+        unset_proxy_environ()
+
+    for name, value in proxies:
+        name = name.lower()
+        if value and name[-6:] == '_proxy':
+            if name[0:2] != "no":
+                _my_proxies[name[:-6]] = value
+            else:
+                _my_noproxy = value
+
+def _ip_to_int(ip):
+    ipint=0
+    shift=24
+    for dec in ip.split("."):
+        ipint |= int(dec) << shift
+        shift -= 8
+    return ipint
+
+def _int_to_ip(val):
+    ipaddr=""
+    shift=0
+    for i in range(4):
+        dec = val >> shift
+        dec &= 0xff
+        ipaddr = ".%d%s" % (dec, ipaddr)
+        shift += 8
+    return ipaddr[1:]
+
+def _isip(host):
+    if host.replace(".", "").isdigit():
+        return True
+    return False
+
+def _set_noproxy_list():
+    global _my_noproxy, _my_noproxy_list
+    _my_noproxy_list = []
+    if not _my_noproxy:
+        return
+    for item in _my_noproxy.split(","):
+        item = item.strip()
+        if not item:
+            continue
+
+        if item[0] != '.' and item.find("/") == -1:
+            # Need to match it
+            _my_noproxy_list.append({"match":0,"needle":item})
+
+        elif item[0] == '.':
+            # Need to match at tail
+            _my_noproxy_list.append({"match":1,"needle":item})
+
+        elif item.find("/") > 3:
+            # IP/MASK, need to match at head
+            needle = item[0:item.find("/")].strip()
+            ip = _ip_to_int(needle)
+            netmask = 0
+            mask = item[item.find("/")+1:].strip()
+
+            if mask.isdigit():
+                netmask = int(mask)
+                netmask = ~((1<<(32-netmask)) - 1)
+                ip &= netmask
+            else:
+                shift=24
+                netmask=0
+                for dec in mask.split("."):
+                    netmask |= int(dec) << shift
+                    shift -= 8
+                ip &= netmask
+
+            _my_noproxy_list.append({"match":2,"needle":ip,"netmask":netmask})
+
+def _isnoproxy(url):
+    (scheme, host, path, parm, query, frag) = urlparse.urlparse(url)
+
+    if '@' in host:
+        user_pass, host = host.split('@', 1)
+
+    if ':' in host:
+        host, port = host.split(':', 1)
+
+    hostisip = _isip(host)
+    for item in _my_noproxy_list:
+        if hostisip and item["match"] <= 1:
+            continue
+
+        if item["match"] == 2 and hostisip:
+            if (_ip_to_int(host) & item["netmask"]) == item["needle"]:
+                return True
+
+        if item["match"] == 0:
+            if host == item["needle"]:
+                return True
+
+        if item["match"] == 1:
+            if host.rfind(item["needle"]) > 0:
+                return True
+
+    return False
+
+def set_proxies(proxy = None, no_proxy = None):
+    _set_proxies(proxy, no_proxy)
+    _set_noproxy_list()
+    set_proxy_environ()
+
+def get_proxy_for(url):
+    if url.startswith('file:') or _isnoproxy(url):
+        return None
+
+    type = url[0:url.index(":")]
+    proxy = None
+    if _my_proxies.has_key(type):
+        proxy = _my_proxies[type]
+    elif _my_proxies.has_key("http"):
+        proxy = _my_proxies["http"]
+    else:
+        proxy = None
+
+    return proxy