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Commit 19872d01 authored by David Anderson's avatar David Anderson
Browse files

init: Add tests and document the new fnmatch behavior in ExternalFirmwareHandler. 

Bug: N/A
Test: atest CtsInitTestCases
Change-Id: I232db8416318ba31ea3f78cc07f235d9a47efac4
parent 22fdd0ae

init/README.ueventd.md

+4 −0
Original line number Diff line number Diff line
@@ -130,6 +130,10 @@ For example 
Will launch `/vendor/bin/led_coeffs.bin` as the system user instead of serving the default firmware

for `/devices/leds/red/firmware/coeffs.bin`.



The `devpath` argument may include asterisks (`*`) to match multiple paths. For example, the string

`/dev/*/red` will match `/dev/leds/red` as well as `/dev/lights/red`. The pattern matching follows

the rules of the fnmatch() function.



Ueventd will provide the uevent `DEVPATH` and `FIRMWARE` to this external program on the environment

via environment variables with the same names. Ueventd will use the string written to stdout as the

new name of the firmware to load. It will still look for the new firmware in the list of firmware

init/firmware_handler_test.cpp

+17 −0
Original line number Diff line number Diff line
@@ -103,6 +103,23 @@ int HandleBadPath(int argc, char** argv) { 
    return 0;

}



TEST(firmware_handler, Matching) {

    ExternalFirmwareHandler h("/dev/path/a.bin", getuid(), "/test");

    ASSERT_TRUE(h.match("/dev/path/a.bin"));

    ASSERT_FALSE(h.match("/dev/path/a.bi"));



    h = ExternalFirmwareHandler("/dev/path/a.*", getuid(), "/test");

    ASSERT_TRUE(h.match("/dev/path/a.bin"));

    ASSERT_TRUE(h.match("/dev/path/a.bix"));

    ASSERT_FALSE(h.match("/dev/path/b.bin"));



    h = ExternalFirmwareHandler("/dev/*/a.bin", getuid(), "/test");

    ASSERT_TRUE(h.match("/dev/path/a.bin"));

    ASSERT_TRUE(h.match("/dev/other/a.bin"));

    ASSERT_FALSE(h.match("/dev/other/c.bin"));

    ASSERT_FALSE(h.match("/dev/path/b.bin"));

}



}  // namespace init

}  // namespace android