[apparmor] [Patch][parser]

[John Johansen]

Fix: Parser error when using regex profile names in IPC rules

BugLink: http://bugs.launchpad.net/bugs/1373085

The parser fails to accept certain characters, even when escaped or quoted
as part of the profile or label name in ipc rules. This is due to the
lexer not accepting those characters as part of the input pattern.

Signed-off-by: John Johansen <john.johansen at canonical.com>

---

=== modified file 'parser/parser_lex.l'
--- parser/parser_lex.l	2014-09-03 22:05:56 +0000
+++ parser/parser_lex.l	2014-09-24 18:24:06 +0000
@@ -211,9 +211,10 @@
 IDS		{ID}+
 POST_VAR_ID_CHARS	[^ \t\n"!,]{-}[=\+]
 POST_VAR_ID 	{POST_VAR_ID_CHARS}|(,{POST_VAR_ID_CHARS})
-LIST_VALUE_ID_CHARS	[^ \t\n"!,]{-}[()]
+LIST_VALUE_ID_CHARS	([^ \t\n"!,]{-}[()]|\\[ ]|\\\t|\\\"|\\!|\\,|\\\(|\\\))
+LIST_VALUE_QUOTED_ID_CHARS [^\0"]|\\\"
 LIST_VALUE_ID	{LIST_VALUE_ID_CHARS}+
-QUOTED_LIST_VALUE_ID	{LIST_VALUE_ID}|\"{LIST_VALUE_ID}\"
+QUOTED_LIST_VALUE_ID	\"{LIST_VALUE_QUOTED_ID_CHARS}+\"
 ID_CHARS_NOEQ	[^ \t\n"!,]{-}[=]
 LEADING_ID_CHARS_NOEQ [^ \t\n"!,]{-}[=()+&]
 ID_NOEQ		{ID_CHARS_NOEQ}|(,{ID_CHARS_NOEQ})