pyrox.dev
Merge pull request #326272 from pitkling/libfprint-2-tod1-broadcom
libfprint-2-tod1-broadcom: init at 5.12.018
+5
maintainers/maintainer-list.nix
+5
maintainers/maintainer-list.nix
+91
pkgs/by-name/li/libfprint-2-tod1-broadcom/package.nix
+91
pkgs/by-name/li/libfprint-2-tod1-broadcom/package.nix
···
···
1
+
{
2
+
autoPatchelfHook,
3
+
fetchzip,
4
+
lib,
5
+
libfprint-tod,
6
+
openssl,
7
+
patchelfUnstable, # have to use patchelfUnstable to support --rename-dynamic-symbols
8
+
stdenv,
9
+
}:
10
+
11
+
# Based on ideas from (using a wrapper library to redirect fopen() calls to firmware files):
12
+
# * https://tapesoftware.net/replace-symbol/
13
+
# * https://github.com/NixOS/nixpkgs/pull/260715
14
+
let
15
+
pname = "libfprint-2-tod1-broadcom";
16
+
version = "5.12.018";
17
+
18
+
src = fetchzip {
19
+
url = "http://dell.archive.canonical.com/updates/pool/public/libf/${pname}/${pname}_${version}.orig.tar.gz";
20
+
hash = "sha256-0C2PpYpEJNrU+8NT95w4QV0J5nHQisMY94Czw3jQOzw=";
21
+
pname = "${pname}-unpacked";
22
+
inherit version;
23
+
};
24
+
25
+
wrapperLibName = "wrapper-lib.so";
26
+
wrapperLibSource = "wrapper-lib.c";
27
+
28
+
# wraps `fopen()` for finding firmware files
29
+
wrapperLib = stdenv.mkDerivation {
30
+
pname = "${pname}-wrapper-lib";
31
+
inherit version;
32
+
33
+
src = builtins.path {
34
+
name = "${pname}-wrapper-lib-source";
35
+
path = ./.;
36
+
filter = path: type: baseNameOf path == wrapperLibSource;
37
+
};
38
+
39
+
postPatch = ''
40
+
substitute ${wrapperLibSource} lib.c \
41
+
--subst-var-by to "${src}/var/lib/fprint/fw"
42
+
cc -fPIC -shared lib.c -o ${wrapperLibName}
43
+
'';
44
+
45
+
installPhase = ''
46
+
runHook preInstall
47
+
install -D -t $out/lib ${wrapperLibName}
48
+
runHook postInstall
49
+
'';
50
+
};
51
+
in
52
+
stdenv.mkDerivation {
53
+
inherit src pname version;
54
+
55
+
buildInputs = [
56
+
libfprint-tod
57
+
openssl
58
+
wrapperLib
59
+
];
60
+
61
+
nativeBuildInputs = [
62
+
autoPatchelfHook
63
+
patchelfUnstable
64
+
];
65
+
66
+
installPhase = ''
67
+
runHook preInstall
68
+
install -D -t "$out/lib/libfprint-2/tod-1/" -m 644 -v usr/lib/x86_64-linux-gnu/libfprint-2/tod-1/libfprint-2-tod-1-broadcom.so
69
+
install -D -t "$out/lib/udev/rules.d/" -m 644 -v lib/udev/rules.d/60-libfprint-2-device-broadcom.rules
70
+
runHook postInstall
71
+
'';
72
+
73
+
postFixup = ''
74
+
echo fopen64 fopen_wrapper > fopen_name_map
75
+
patchelf \
76
+
--rename-dynamic-symbols fopen_name_map \
77
+
--add-needed ${wrapperLibName} \
78
+
"$out/lib/libfprint-2/tod-1/libfprint-2-tod-1-broadcom.so"
79
+
'';
80
+
81
+
passthru.driverPath = "/lib/libfprint-2/tod-1";
82
+
83
+
meta = with lib; {
84
+
description = "Broadcom driver module for libfprint-2-tod Touch OEM Driver (from Dell)";
85
+
homepage = "http://dell.archive.canonical.com/updates/pool/public/libf/libfprint-2-tod1-broadcom/";
86
+
license = licenses.unfree;
87
+
maintainers = with maintainers; [ pitkling ];
88
+
platforms = [ "x86_64-linux" ];
89
+
sourceProvenance = with sourceTypes; [ binaryNativeCode ];
90
+
};
91
+
}
+23
pkgs/by-name/li/libfprint-2-tod1-broadcom/wrapper-lib.c
+23
pkgs/by-name/li/libfprint-2-tod1-broadcom/wrapper-lib.c
···
···
1
+
#include <stdio.h>
2
+
#include <stdlib.h>
3
+
#include <string.h>
4
+
5
+
static const char from[] = "/var/lib/fprint/fw";
6
+
static const char to[] = "@to@";
7
+
8
+
FILE* fopen_wrapper(const char* fn, const char* mode) {
9
+
size_t fn_len = strlen(fn);
10
+
size_t from_len = strlen(from);
11
+
if (fn_len > from_len && memcmp(fn, from, from_len) == 0) {
12
+
size_t to_len = strlen(to);
13
+
char* rewritten = calloc(fn_len + (to_len - from_len) + 1, 1);
14
+
memcpy(rewritten, to, to_len);
15
+
memcpy(rewritten + to_len, fn + from_len, fn_len - from_len);
16
+
17
+
printf("fopen_wrapper.c: Replacing path '%s' with '%s'\n", fn, rewritten);
18
+
FILE* result = fopen(rewritten, mode);
19
+
free(rewritten);
20
+
return result;
21
+
}
22
+
return fopen(fn, mode);
23
+
}