Argv&envp mangling rules are now generated only once per session.

- There is new lua script: create_argvmods_rules.lua which
  is used to create explicit rules based rules created  by argvenvp_xxx.lua.
- Separated mangling rules for misc binaries to be in file
  argvenvp_misc.lua
- Rules are generated by sb2 script and placed under
  $SBOX_SESSION_DIR/argvmods/*.

Signed-off-by: Lauri Aarnio <Lauri.Aarnio@iki.fi>

1 files changed, 85 insertions, 0 deletions

diff --git a/lua_scripts/create_argvmods_rules.lua b/lua_scripts/create_argvmods_rules.lua
new file mode 100644
index 0000000..8301236
--- /dev/null
+++ b/lua_scripts/create_argvmods_rules.lua
@@ -0,0 +1,85 @@
+--
+-- Copyright (c) 2009 Nokia Corporation.
+--
+-- Licensed under MIT licence
+--
+-- This script reads in argvmods_xxx.lua file (xxx being here
+-- gcc or misc) and writes out lua table containing generated
+-- argvmods rules.
+--
+argvmods = {}
+
+local argvmods_source_file = session_dir .. "/lua_scripts/" ..
+    os.getenv("SBOX_ARGVMODS_SOURCE_FILE")
+do_file(argvmods_source_file)
+
+local allowed_rulenames = {
+	"name",
+	"path_prefixes",
+	"add_head",
+	"add_tail",
+	"remove",
+	"new_filename",
+	"disable_mapping",
+	"drivers",
+}
+
+print("--")
+print("-- Generator: create_argvmods_rules.lua")
+print("-- Source file: " .. argvmods_source_file)
+print("-- Automatically generated rules.  Do not modify:")
+print("--")
+
+local count = 0
+for binary_name, rule in pairs(argvmods) do
+	print(string.format("argvmods[\"%s\"] = {", binary_name))
+	for name, value in pairs(rule) do
+		--
+		-- Check that rulename is valid.
+		--
+		local found = 0
+		for i = 1, #allowed_rulenames do
+			if name == allowed_rulenames[i] then
+				found = 1
+				break
+			end
+		end
+		if found == 0 then
+			io.stderr:write(string.format(
+			    "invalid rulename '%s'\n", name))
+		end
+		io.write(string.format("\t%s = ", name))
+		if type(value) == "string" then
+			io.write(string.format("\"%s\"", value))
+		elseif type(value) == "number" then
+			io.write(string.format("%d", value))
+		elseif type(value) == "table" then
+			if #value == 0 then
+				io.write("{}")
+			else
+				io.write("{\n")
+				for i = 1, #value do
+					assert(type(value[i]) == "string")
+
+					io.write(
+					    string.format("\t\t\"%s\",\n",
+					    value[i]))
+				end
+				io.write("\t}");
+			end
+		else
+			io.stderr:write(string.format(
+			    "unsupported type '%s' in argvmod rule\n",
+			    type(value)))
+			assert(false)
+		end
+		io.write(",\n")
+	end
+	print("}")
+	count = count + 1
+end
+
+print("--")
+print(string.format("-- Total %d rule(s).", count))
+print("-- End of rules created by argvmods expander.")
+print("--")