commit b69cb4a7050c88b2c37c220e15427d374b8f5cef Author: Daniel Drake Date: Tue Mar 4 12:36:28 2008 +0000 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..46b26f7 --- /dev/null +++ b/.gitignore @@ -0,0 +1,17 @@ +Makefile.in +Makefile +aclocal.m4 +compile +autom4te.cache +configure +depcomp +install-sh +missing +config.log +config.status +.deps +client-bindings.h +server-bindings.h +demo +*.o +fprintd diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..d2beff9 --- /dev/null +++ b/AUTHORS @@ -0,0 +1,2 @@ +Daniel Drake + diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..e69de29 diff --git a/INSTALL b/INSTALL new file mode 100644 index 0000000..d3c5b40 --- /dev/null +++ b/INSTALL @@ -0,0 +1,237 @@ +Installation Instructions +************************* + +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, +2006, 2007 Free Software Foundation, Inc. + +This file is free documentation; the Free Software Foundation gives +unlimited permission to copy, distribute and modify it. + +Basic Installation +================== + +Briefly, the shell commands `./configure; make; make install' should +configure, build, and install this package. The following +more-detailed instructions are generic; see the `README' file for +instructions specific to this package. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, and a +file `config.log' containing compiler output (useful mainly for +debugging `configure'). + + It can also use an optional file (typically called `config.cache' +and enabled with `--cache-file=config.cache' or simply `-C') that saves +the results of its tests to speed up reconfiguring. Caching is +disabled by default to prevent problems with accidental use of stale +cache files. + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If you are using the cache, and at +some point `config.cache' contains results you don't want to keep, you +may remove or edit it. + + The file `configure.ac' (or `configure.in') is used to create +`configure' by a program called `autoconf'. You need `configure.ac' if +you want to change it or regenerate `configure' using a newer version +of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. + + Running `configure' might take a while. While running, it prints + some messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + + 6. Often, you can also type `make uninstall' to remove the installed + files again. + +Compilers and Options +===================== + +Some systems require unusual options for compilation or linking that the +`configure' script does not know about. Run `./configure --help' for +details on some of the pertinent environment variables. + + You can give `configure' initial values for configuration parameters +by setting variables in the command line or in the environment. Here +is an example: + + ./configure CC=c99 CFLAGS=-g LIBS=-lposix + + *Note Defining Variables::, for more details. + +Compiling For Multiple Architectures +==================================== + +You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you can use GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + With a non-GNU `make', it is safer to compile the package for one +architecture at a time in the source code directory. After you have +installed the package for one architecture, use `make distclean' before +reconfiguring for another architecture. + +Installation Names +================== + +By default, `make install' installs the package's commands under +`/usr/local/bin', include files under `/usr/local/include', etc. You +can specify an installation prefix other than `/usr/local' by giving +`configure' the option `--prefix=PREFIX'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. 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The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + +There may be some features `configure' cannot figure out automatically, +but needs to determine by the type of machine the package will run on. +Usually, assuming the package is built to be run on the _same_ +architectures, `configure' can figure that out, but if it prints a +message saying it cannot guess the machine type, give it the +`--build=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name which has the form: + + CPU-COMPANY-SYSTEM + +where SYSTEM can have one of these forms: + + OS KERNEL-OS + + See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the machine type. + + If you are _building_ compiler tools for cross-compiling, you should +use the option `--target=TYPE' to select the type of system they will +produce code for. + + If you want to _use_ a cross compiler, that generates code for a +platform different from the build platform, you should specify the +"host" platform (i.e., that on which the generated programs will +eventually be run) with `--host=TYPE'. + +Sharing Defaults +================ + +If you want to set default values for `configure' scripts to share, you +can create a site shell script called `config.site' that gives default +values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Defining Variables +================== + +Variables not defined in a site shell script can be set in the +environment passed to `configure'. However, some packages may run +configure again during the build, and the customized values of these +variables may be lost. In order to avoid this problem, you should set +them in the `configure' command line, using `VAR=value'. For example: + + ./configure CC=/usr/local2/bin/gcc + +causes the specified `gcc' to be used as the C compiler (unless it is +overridden in the site shell script). + +Unfortunately, this technique does not work for `CONFIG_SHELL' due to +an Autoconf bug. Until the bug is fixed you can use this workaround: + + CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash + +`configure' Invocation +====================== + +`configure' recognizes the following options to control how it operates. + +`--help' +`-h' + Print a summary of the options to `configure', and exit. + +`--version' +`-V' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`--cache-file=FILE' + Enable the cache: use and save the results of the tests in FILE, + traditionally `config.cache'. FILE defaults to `/dev/null' to + disable caching. + +`--config-cache' +`-C' + Alias for `--cache-file=config.cache'. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`configure' also accepts some other, not widely useful, options. Run +`configure --help' for more details. + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..eefc401 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,4 @@ +AUTOMAKE_OPTIONS = dist-bzip2 +SUBDIRS = src examples +EXTRA_DIST = TODO + diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..eebab97 --- /dev/null +++ b/NEWS @@ -0,0 +1,2 @@ +This file lists notable changes in each release. For the full history of all +changes, see ChangeLog. diff --git a/README b/README new file mode 100644 index 0000000..8c98977 --- /dev/null +++ b/README @@ -0,0 +1,12 @@ +fprintd +======= + +http://www.reactivated.net/fprint/wiki/Fprintd + +Daemon to offer libfprint functionality over D-Bus +Currently in early stages. Might eat your kangaroo. + +Written in C. Requires bleeding edge libfprint (libusb-1.0 port). + +Licensed under the GPL version 2 (see COPYING). + diff --git a/TODO b/TODO new file mode 100644 index 0000000..5575d6e --- /dev/null +++ b/TODO @@ -0,0 +1,13 @@ +Enrollment +Identification +Image transfer +Imaging +Automatically ReleaseDevice when application disconnects from bus +Rethink print handling - we discover on ListEnrolled and rediscover on each LoadPrintData + +Enforce command sequences: + force VerifyStop after non-retry verify result comes in + only allow GetVerifyResult during a verification + only allow VerifyStop during a verification + etc + diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..5fc5c4e --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,41 @@ +dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR) +dnl +dnl example +dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir) +dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local + +AC_DEFUN([AS_AC_EXPAND], +[ + EXP_VAR=[$1] + FROM_VAR=[$2] + + dnl first expand prefix and exec_prefix if necessary + prefix_save=$prefix + exec_prefix_save=$exec_prefix + + dnl if no prefix given, then use /usr/local, the default prefix + if test "x$prefix" = "xNONE"; then + prefix=$ac_default_prefix + fi + dnl if no exec_prefix given, then use prefix + if test "x$exec_prefix" = "xNONE"; then + exec_prefix=$prefix + fi + + full_var="$FROM_VAR" + dnl loop until it doesn't change anymore + while true; do + new_full_var="`eval echo $full_var`" + if test "x$new_full_var"="x$full_var"; then break; fi + full_var=$new_full_var + done + + dnl clean up + full_var=$new_full_var + AC_SUBST([$1], "$full_var") + + dnl restore prefix and exec_prefix + prefix=$prefix_save + exec_prefix=$exec_prefix_save +]) + diff --git a/autogen.sh b/autogen.sh new file mode 100755 index 0000000..4778cd5 --- /dev/null +++ b/autogen.sh @@ -0,0 +1,5 @@ +#!/bin/sh +aclocal || exit 1 +autoconf || exit 1 +automake -a -c || exit 1 +./configure --enable-maintainer-mode $* diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..530742c --- /dev/null +++ b/configure.ac @@ -0,0 +1,38 @@ +AC_INIT([fprintd], [0.1]) +AM_INIT_AUTOMAKE +AC_CONFIG_SRCDIR([src/main.c]) + +AC_PREREQ([2.50]) +AC_PROG_CC +AM_PROG_CC_C_O + +PKG_CHECK_MODULES(FPRINT, "libfprint") +AC_SUBST(FPRINT_LIBS) +AC_SUBST(FPRINT_CFLAGS) + +PKG_CHECK_MODULES(GLIB, "glib-2.0") +AC_SUBST(GLIB_CFLAGS) +AC_SUBST(GLIB_LIBS) + +PKG_CHECK_MODULES(DBUS_GLIB, "dbus-glib-1") +AC_SUBST(DBUS_GLIB_LIBS) +AC_SUBST(DBUS_GLIB_CFLAGS) + +AS_AC_EXPAND(DATADIR, $datadir) + +DBUS_SERVICES_DIR="$DATADIR/dbus-1/services" +AC_SUBST(DBUS_SERVICES_DIR) +AC_DEFINE_UNQUOTED(DBUS_SERVICES_DIR, "$DBUS_SERVICES_DIR", [Where services dir for DBUS is]) + +# Restore gnu89 inline semantics on gcc 4.3 and newer +saved_cflags="$CFLAGS" +CFLAGS="$CFLAGS -fgnu89-inline" +AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="") +CFLAGS="$saved_cflags" + +AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration -Wno-pointer-sign -Wshadow" +AC_SUBST(AM_CFLAGS) + +AC_CONFIG_FILES([Makefile] [src/Makefile] [examples/Makefile]) +AC_OUTPUT + diff --git a/examples/Makefile.am b/examples/Makefile.am new file mode 100644 index 0000000..982616d --- /dev/null +++ b/examples/Makefile.am @@ -0,0 +1,14 @@ +BUILT_SOURCES = client-bindings.h +noinst_HEADERS = $(BUILT_SOURCES) +CLEANFILES = $(BUILT_SOURCES) + +bin_PROGRAMS = demo + +demo_SOURCES = demo.c +demo_CFLAGS = $(AM_CFLAGS) $(DBUS_GLIB_CFLAGS) +demo_LDADD = $(DBUS_GLIB_LIBS) + +client-bindings.h: ../src/fprintd.xml + dbus-binding-tool --prefix=fprint --mode=glib-client $< --output=$@ + + diff --git a/examples/demo.c b/examples/demo.c new file mode 100644 index 0000000..560717f --- /dev/null +++ b/examples/demo.c @@ -0,0 +1,233 @@ +/* + * fprintd example to verify a fingerprint + * Copyright (C) 2008 Daniel Drake + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include +#include +#include "client-bindings.h" + +static DBusGProxy *proxy = NULL; +static DBusGConnection *connection = NULL; + +enum fp_verify_result { + VERIFY_NO_MATCH = 0, + VERIFY_MATCH = 1, + VERIFY_RETRY = 100, + VERIFY_RETRY_TOO_SHORT = 101, + VERIFY_RETRY_CENTER_FINGER = 102, + VERIFY_RETRY_REMOVE_FINGER = 103, +}; + +static const char *verify_result_str(int result) +{ + switch (result) { + case VERIFY_NO_MATCH: + return "No match"; + case VERIFY_MATCH: + return "Match!"; + case VERIFY_RETRY: + return "Retry scan"; + case VERIFY_RETRY_TOO_SHORT: + return "Swipe too short, please retry"; + case VERIFY_RETRY_CENTER_FINGER: + return "Finger not centered, please retry"; + case VERIFY_RETRY_REMOVE_FINGER: + return "Please remove finger and retry"; + default: + return "Unknown"; + } +} + +enum fp_finger { + LEFT_THUMB = 1, /** thumb (left hand) */ + LEFT_INDEX, /** index finger (left hand) */ + LEFT_MIDDLE, /** middle finger (left hand) */ + LEFT_RING, /** ring finger (left hand) */ + LEFT_LITTLE, /** little finger (left hand) */ + RIGHT_THUMB, /** thumb (right hand) */ + RIGHT_INDEX, /** index finger (right hand) */ + RIGHT_MIDDLE, /** middle finger (right hand) */ + RIGHT_RING, /** ring finger (right hand) */ + RIGHT_LITTLE, /** little finger (right hand) */ +}; + +static const char *fingerstr(guint32 fingernum) +{ + switch (fingernum) { + case LEFT_THUMB: + return "Left thumb"; + case LEFT_INDEX: + return "Left index finger"; + case LEFT_MIDDLE: + return "Left middle finger"; + case LEFT_RING: + return "Left ring finger"; + case LEFT_LITTLE: + return "Left little finger"; + case RIGHT_THUMB: + return "Right thumb"; + case RIGHT_INDEX: + return "Right index finger"; + case RIGHT_MIDDLE: + return "Right middle finger"; + case RIGHT_RING: + return "Right ring finger"; + case RIGHT_LITTLE: + return "Right little finger"; + default: + return "Unknown finger"; + } +} + +static void create_proxy(void) +{ + GError *error = NULL; + + connection = dbus_g_bus_get(DBUS_BUS_SESSION, &error); + if (connection == NULL) + g_error("Failed to connect to session bus: %s", error->message); + + proxy = dbus_g_proxy_new_for_name_owner(connection, + "net.reactivated.Fprint", "/net/reactivated/Fprint", + "net.reactivated.Fprint", &error); + if (proxy == NULL) + g_error("Failed to create proxy: %s", error->message); +} + +static guint32 open_device(void) +{ + GError *error = NULL; + GArray *device_ids; + char **drvnames; + char **fullnames; + guint i; + guint32 device_id; + + if (!net_reactivated_Fprint_list_devices(proxy, &device_ids, &drvnames, + &fullnames, &error)) + g_error("list_devices failed: %s", error->message); + + if (device_ids->len == 0) { + g_print("No devices found\n"); + exit(1); + } + + g_print("found %d devices\n", device_ids->len); + for (i = 0; i < device_ids->len; i++) { + g_print("Device #%d: %s (%s)\n", g_array_index(device_ids, guint32, i), + fullnames[i], drvnames[i]); + } + + device_id = g_array_index(device_ids, int, 0); + g_strfreev(drvnames); + g_strfreev(fullnames); + g_array_free(device_ids, TRUE); + + g_print("using device #%d\n", device_id); + if (!net_reactivated_Fprint_claim_device(proxy, device_id, &error)) + g_error("failed to claim device: %s", error->message); + return device_id; +} + +static guint32 find_finger(guint32 device_id) +{ + GError *error = NULL; + GArray *fingers; + guint i; + int fingernum; + guint32 print_id; + + if (!net_reactivated_Fprint_list_enrolled_fingers(proxy, 0, &fingers, &error)) + g_error("ListEnrolledFingers failed: %s", error->message); + + if (fingers->len == 0) { + g_print("No fingers enrolled for this device.\n"); + exit(1); + } + + g_print("Listing enrolled fingers:\n"); + for (i = 0; i < fingers->len; i++) { + fingernum = g_array_index(fingers, guint32, i); + g_print(" - #%d: %s\n", fingernum, fingerstr(fingernum)); + } + + fingernum = g_array_index(fingers, guint32, 0); + g_array_free(fingers, TRUE); + + g_print("Verifying: %s\n", fingerstr(fingernum)); + if (!net_reactivated_Fprint_load_print_data(proxy, device_id, fingernum, &print_id, &error)) + g_error("LoadPrintData failed: %s", error->message); + + return print_id; +} + +static int do_verify(guint32 device_id, guint32 print_id) +{ + GError *error; + gboolean more_results; + int result; + + if (!net_reactivated_Fprint_verify_start(proxy, device_id, print_id, &error)) + g_error("VerifyStart failed: %s", error->message); + + do { + if (!net_reactivated_Fprint_get_verify_result(proxy, device_id, &result, &more_results, &error)) + g_error("GetVerifyResult failed: %s", error->message); + + g_print("Verify result: %s (%d)\n", verify_result_str(result), result); + } while (result != VERIFY_NO_MATCH && result != VERIFY_MATCH); + + if (!net_reactivated_Fprint_verify_stop(proxy, device_id, &error)) + g_error("VerifyStop failed: %s", error->message); + + return result; +} + +static void unload_print(guint32 device_id, guint32 print_id) +{ + GError *error = NULL; + if (!net_reactivated_Fprint_unload_print_data(proxy, device_id, print_id, &error)) + g_error("UnloadPrint failed: %s", error->message); +} + +static void release_device(guint32 device_id) +{ + GError *error = NULL; + if (!net_reactivated_Fprint_release_device(proxy, device_id, &error)) + g_error("ReleaseDevice failed: %s", error->message); +} + +int main(int argc, char **argv) +{ + GMainLoop *loop; + guint32 device_id; + guint32 print_id; + int verify_result; + + g_type_init(); + loop = g_main_loop_new(NULL, FALSE); + create_proxy(); + + device_id = open_device(); + print_id = find_finger(device_id); + verify_result = do_verify(device_id, print_id); + unload_print(device_id, print_id); + release_device(device_id); + return 0; +} + diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..273da6c --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,15 @@ +BUILT_SOURCES = server-bindings.h +noinst_HEADERS = $(BUILT_SOURCES) + +CLEANFILES = $(BUILT_SOURCES) +EXTRA_DIST = fprintd.xml + +bin_PROGRAMS = fprintd + +fprintd_SOURCES = main.c +fprintd_LDADD = $(GLIB_LIBS) $(DBUS_GLIB_LIBS) $(FPRINT_LIBS) +fprintd_CFLAGS = $(AM_CFLAGS) $(GLIB_CFLAGS) $(DBUS_GLIB_CFLAGS) $(FPRINT_CFLAGS) + +server-bindings.h: fprintd.xml + dbus-binding-tool --prefix=fprint --mode=glib-server $< --output=$@ + diff --git a/src/fprintd.xml b/src/fprintd.xml new file mode 100644 index 0000000..d22b0ca --- /dev/null +++ b/src/fprintd.xml @@ -0,0 +1,56 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..01074a5 --- /dev/null +++ b/src/main.c @@ -0,0 +1,768 @@ +/* + * fprint D-Bus daemon + * Copyright (C) 2008 Daniel Drake + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include +#include + +#include +#include +#include +#include + +#define FPRINT_TYPE (fprint_get_type()) +#define FPRINT(object) (G_TYPE_CHECK_INSTANCE_CAST((object), FPRINT_TYPE, Fprint)) +#define FPRINT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), FPRINT_TYPE, FprintClass)) +#define IS_FPRINT(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), FPRINT_TYPE)) +#define IS_FPRINT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), FPRINT_TYPE)) +#define FPRINT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), FPRINT_TYPE, FprintClass)) + +struct Fprint { + GObject parent; +}; + +struct FprintClass { + GObjectClass parent; +}; + +typedef struct Fprint Fprint; +typedef struct FprintClass FprintClass; + +/* Generate the GObject boilerplate */ +G_DEFINE_TYPE(Fprint, fprint, G_TYPE_OBJECT) + +static gboolean fprint_list_devices(Fprint *fprint, GArray **ids, + char ***drivers, char ***fullnames, GError **error); +static gboolean fprint_list_enrolled_fingers(Fprint *fprint, guint32 device_id, + GArray **fingers, GError **error); +static gboolean fprint_load_print_data(Fprint *fprint, guint32 device_id, + guint32 finger_num, guint32 *print_id, GError **error); +static gboolean fprint_unload_print_data(Fprint *fprint, guint32 device_id, + guint32 print_id, GError **error); +static gboolean fprint_claim_device(Fprint *fprint, guint32 device_id, + GError **error); +static gboolean fprint_release_device(Fprint *fprint, guint32 device_id, + GError **error); +static gboolean fprint_verify_start(Fprint *fprint, guint32 device_id, + guint32 finger, GError **error); +static gboolean fprint_get_verify_result(Fprint *fprint, guint32 device_id, + DBusGMethodInvocation *minv); +static gboolean fprint_verify_stop(Fprint *fprint, guint32 device_id, + DBusGMethodInvocation *minv); + +#include "server-bindings.h" + +#define FPRINT_SERVICE_NAME "net.reactivated.Fprint" + +#define FPRINT_ERROR fprint_error_quark() +typedef enum { + FPRINT_ERROR_NO_SUCH_DEVICE, + FPRINT_ERROR_DISCOVER_PRINTS, + FPRINT_ERROR_PRINT_NOT_FOUND, + FPRINT_ERROR_PRINT_LOAD, + FPRINT_ERROR_NO_SUCH_LOADED_PRINT, + FPRINT_ERROR_VERIFY_START, + FPRINT_ERROR_VERIFY_STOP, + FPRINT_ERROR_FAILED, +} FprintError; + +struct verify_result { + int result; + struct fp_img *img; +}; + +struct loaded_print { + guint32 id; + struct fp_print_data *data; +}; + +struct session_data { + /* a list of pending verify results to be returned via GetVerifyResult() */ + GList *verify_results; + + /* method invocation for async GetVerifyResult() */ + DBusGMethodInvocation *minv_get_verify_result; + + /* a list of loaded prints */ + GSList *loaded_prints; +}; + +/* known devices are "registered" in a catalogue when they become known. + * each registered device may be simply discovered, but is later opened when + * claimed by an application and closed upon release. + */ +struct registered_dev { + guint32 id; + struct fp_dscv_dev *ddev; + struct fp_dev *dev; + struct session_data *session; +}; + +static GSList *dev_catalogue; +static guint32 last_id = ~0; + +static GQuark fprint_error_quark(void) +{ + static GQuark quark = 0; + if (!quark) + quark = g_quark_from_static_string("fprintd-error-quark"); + return quark; +} + +static void fprint_class_init(FprintClass *fprint_class) +{ + dbus_g_object_type_install_info(FPRINT_TYPE, &dbus_glib_fprint_object_info); +} + +static void fprint_init(Fprint *fprint) +{ +} + +static struct registered_dev *find_rdev_by_id(guint32 device_id) +{ + GSList *elem = dev_catalogue; + + if (!elem) + return NULL; + + do { + struct registered_dev *rdev = elem->data; + if (rdev->id == device_id) + return rdev; + } while ((elem = g_slist_next(elem)) != NULL); + + return NULL; +} + +static gboolean fprint_list_devices(Fprint *fprint, GArray **ids, + char ***drivers, char ***fullnames, GError **error) +{ + int num_open = g_slist_length(dev_catalogue); + gchar **drvlist = g_malloc(sizeof(gchar *) * (num_open + 1)); + gchar **namelist = g_malloc(sizeof(gchar *) * (num_open + 1)); + GArray *idlist = g_array_sized_new(FALSE, FALSE, sizeof(guint32), num_open); + GSList *elem = dev_catalogue; + guint32 i = 0; + + g_message("list_devices request, returning %d results", num_open); + drvlist[num_open] = NULL; + namelist[num_open] = NULL; + if (num_open == 0) + goto out; + + do { + struct registered_dev *rdev = elem->data; + struct fp_dscv_dev *ddev = rdev->ddev; + struct fp_driver *drv = fp_dscv_dev_get_driver(ddev); + idlist = g_array_append_val(idlist, rdev->id); + drvlist[i] = g_strdup(fp_driver_get_name(drv)); + namelist[i++] = g_strdup(fp_driver_get_full_name(drv)); + } while ((elem = g_slist_next(elem)) != NULL); + +out: + *ids = idlist; + *drivers = drvlist; + *fullnames = namelist; + return TRUE; +} + +static gboolean fprint_claim_device(Fprint *fprint, guint32 device_id, + GError **error) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + if (!rdev) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + return FALSE; + } + + /* FIXME async? */ + /* FIXME more error checking */ + rdev->dev = fp_dev_open(rdev->ddev); + rdev->session = g_slice_new0(struct session_data); + g_message("claimed device %d", device_id); + return TRUE; +} + +static gboolean fprint_release_device(Fprint *fprint, guint32 device_id, + GError **error) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct session_data *session; + GSList *elem; + + if (!rdev) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + return FALSE; + } + + /* FIXME make async? */ + fp_dev_close(rdev->dev); + rdev->dev = NULL; + + /* Unload any loaded prints */ + session = rdev->session; + elem = session->loaded_prints; + + if (elem) { + do + g_slice_free(struct loaded_print, elem->data); + while ((elem = g_slist_next(elem)) != NULL); + g_slist_free(session->loaded_prints); + } + + g_slice_free(struct session_data, rdev->session); + rdev->session = NULL; + g_message("released device %d", device_id); + return TRUE; +} + +static gboolean fprint_list_enrolled_fingers(Fprint *fprint, guint32 device_id, + GArray **fingers, GError **error) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct fp_dscv_print **prints; + struct fp_dscv_print **print; + GArray *ret; + + if (!rdev) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + return FALSE; + } + + prints = fp_discover_prints(); + if (!prints) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_DISCOVER_PRINTS, + "Failed to discover prints"); + return FALSE; + } + + ret = g_array_new(FALSE, FALSE, sizeof(int)); + for (print = prints; *print; print++) + if (fp_dev_supports_dscv_print(rdev->dev, *print)) { + int finger = fp_dscv_print_get_finger(*print); + ret = g_array_append_val(ret, finger); + } + + fp_dscv_prints_free(prints); + *fingers = ret; + return TRUE; +} + +static gboolean fprint_load_print_data(Fprint *fprint, guint32 device_id, + guint32 finger_num, guint32 *print_id, GError **error) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct session_data *session; + struct loaded_print *lprint; + struct fp_dscv_print **dprints; + struct fp_dscv_print **dprint; + struct fp_dscv_print *selected_print = NULL; + struct fp_print_data *data; + int r; + + if (!rdev) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + return FALSE; + } + + session = rdev->session; + dprints = fp_discover_prints(); + if (!dprints) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_DISCOVER_PRINTS, + "Failed to discover prints"); + return FALSE; + } + + for (dprint = dprints; *dprint; dprint++) + if (fp_dev_supports_dscv_print(rdev->dev, *dprint) + && fp_dscv_print_get_finger(*dprint) == finger_num) { + selected_print = *dprint; + break; + } + + if (!selected_print) { + fp_dscv_prints_free(dprints); + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_PRINT_NOT_FOUND, + "Print not found"); + return FALSE; + } + + r = fp_print_data_from_dscv_print(selected_print, &data); + fp_dscv_prints_free(dprints); + if (r < 0) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_PRINT_LOAD, + "Print load failed with error %d", r); + return FALSE; + } + + lprint = g_slice_new(struct loaded_print); + lprint->data = data; + lprint->id = ++last_id; + session->loaded_prints = g_slist_prepend(session->loaded_prints, lprint); + + g_message("load print data finger %d for device %d = %d", + finger_num, device_id, lprint->id); + *print_id = lprint->id; + return TRUE; +} + +static gboolean fprint_unload_print_data(Fprint *fprint, guint32 device_id, + guint32 print_id, GError **error) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct session_data *session; + GSList *elem; + + if (!rdev) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + return FALSE; + } + + session = rdev->session; + elem = session->loaded_prints; + + g_message("unload print data %d for device %d", print_id, device_id); + if (!elem) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT, + "No such loaded print %d", print_id); + return FALSE; + } + + do { + struct loaded_print *print = elem->data; + if (print->id != print_id) + continue; + + session->loaded_prints = g_slist_delete_link(session->loaded_prints, + elem); + g_slice_free(struct loaded_print, print); + return TRUE; + } while ((elem = g_slist_next(elem)) != NULL); + + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT, + "No such loaded print %d", print_id); + return FALSE; +} + +static void verify_cb(struct fp_dev *dev, int r, struct fp_img *img, + void *user_data) +{ + struct registered_dev *rdev = user_data; + struct session_data *session = rdev->session; + g_message("verify_cb: result %d", r); + + if (session->minv_get_verify_result) { + /* if we have an app waiting on a verify result, report it + * immediately */ + dbus_g_method_return(session->minv_get_verify_result, r, FALSE); + fp_img_free(img); + session->minv_get_verify_result = NULL; + } else { + /* otherwise nobody is listening. add it to the queue of pending + * results */ + struct verify_result *result = g_slice_new(struct verify_result); + result->result = r; + result->img = img; + session->verify_results = g_list_append(session->verify_results, + result); + } +} + +static gboolean fprint_verify_start(Fprint *fprint, guint32 device_id, + guint32 print_id, GError **error) +{ + int r; + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct session_data *session; + struct fp_print_data *data = NULL; + GSList *elem; + + if (!rdev) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + return FALSE; + } + + session = rdev->session; + elem = session->loaded_prints; + + g_message("start verification device %d print %d", device_id, print_id); + if (!elem) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT, + "No such loaded print %d", print_id); + return FALSE; + } + + do { + struct loaded_print *print = elem->data; + if (print->id == print_id) { + data = print->data; + break; + } + } while ((elem = g_slist_next(elem)) != NULL); + + if (!data) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT, + "No such loaded print %d", print_id); + return FALSE; + } + + /* FIXME check freeing/copying of data */ + r = fp_async_verify_start(rdev->dev, data, verify_cb, rdev); + if (r < 0) { + g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_VERIFY_START, + "Verify start failed with error %d", r); + return FALSE; + } + + return TRUE; +} + +static gboolean fprint_get_verify_result(Fprint *fprint, guint32 device_id, + DBusGMethodInvocation *minv) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct session_data *session; + GList *elem; + + if (!rdev) { + GError *error; + g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + dbus_g_method_return_error(minv, error); + return FALSE; + } + + session = rdev->session; + elem = session->verify_results; + + if (elem == NULL) { + /* no pending results, asynchronously wait for the next one */ + session->minv_get_verify_result = minv; + g_message("get_verify_result: none pending, waiting for next one"); + } else { + struct verify_result *result = elem->data; + gboolean has_next = (g_list_next(elem) != NULL); + g_message("GetVerifyResult: returning pending result %d", + result->result); + dbus_g_method_return(minv, result->result, has_next); + fp_img_free(result->img); + session->verify_results = g_list_delete_link(session->verify_results, + elem); + g_slice_free(struct verify_result, result); + } + + return TRUE; +} + +static void verify_stop_cb(struct fp_dev *dev, void *user_data) +{ + dbus_g_method_return((DBusGMethodInvocation *) user_data); +} + +static gboolean fprint_verify_stop(Fprint *fprint, guint32 device_id, + DBusGMethodInvocation *minv) +{ + struct registered_dev *rdev = find_rdev_by_id(device_id); + struct session_data *session; + GList *elem; + int r; + + if (!rdev) { + GError *error; + g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_DEVICE, + "No such device %d", device_id); + dbus_g_method_return_error(minv, error); + return FALSE; + } + + /* Free all unreaped verify results */ + session = rdev->session; + elem = session->verify_results; + + if (elem) { + do { + struct verify_result *result = elem->data; + fp_img_free(result->img); + g_slice_free(struct verify_result, result); + } while ((elem = g_list_next(elem)) != NULL); + g_list_free(session->verify_results); + session->verify_results = NULL; + } + + r = fp_async_verify_stop(rdev->dev, verify_stop_cb, minv); + if (r < 0) { + GError *error; + g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_VERIFY_STOP, + "Verify stop failed with error %d", r); + dbus_g_method_return_error(minv, error); + return FALSE; + } + + return TRUE; +} + +struct fdsource { + GSource source; + GSList *pollfds; +}; + +static gboolean source_prepare(GSource *source, gint *timeout) +{ + int r; + struct timeval tv; + + r = fp_get_next_timeout(&tv); + if (r == 0) { + *timeout = -1; + return FALSE; + } + + if (!timerisset(&tv)) + return TRUE; + + *timeout = (tv.tv_sec * 1000) + (tv.tv_usec / 1000); + return FALSE; +} + +static gboolean source_check(GSource *source) +{ + struct fdsource *_fdsource = (struct fdsource *) source; + GSList *elem = _fdsource->pollfds; + struct timeval tv; + int r; + + if (!elem) + return FALSE; + + do { + GPollFD *pollfd = elem->data; + if (pollfd->revents) + return TRUE; + } while ((elem = g_slist_next(elem))); + + r = fp_get_next_timeout(&tv); + if (r == 1 && !timerisset(&tv)) + return TRUE; + + return FALSE; +} + +static gboolean source_dispatch(GSource *source, GSourceFunc callback, + gpointer data) +{ + struct timeval zerotimeout = { + .tv_sec = 0, + .tv_usec = 0, + }; + + /* FIXME error handling */ + fp_handle_events_timeout(&zerotimeout); + + /* FIXME whats the return value used for? */ + return TRUE; +} + +static void source_finalize(GSource *source) +{ + struct fdsource *_fdsource = (struct fdsource *) source; + GSList *elem = _fdsource->pollfds; + + if (elem) + do { + GPollFD *pollfd = elem->data; + g_source_remove_poll((GSource *) _fdsource, pollfd); + g_slice_free(GPollFD, pollfd); + _fdsource->pollfds = g_slist_delete_link(_fdsource->pollfds, elem); + } while ((elem = g_slist_next(elem))); + + g_slist_free(_fdsource->pollfds); +} + +static GSourceFuncs sourcefuncs = { + .prepare = source_prepare, + .check = source_check, + .dispatch = source_dispatch, + .finalize = source_finalize, +}; + +static struct fdsource *fdsource = NULL; + +static void pollfd_add(int fd, short events) +{ + GPollFD *pollfd = g_slice_new(GPollFD); + pollfd->fd = fd; + pollfd->events = 0; + pollfd->revents = 0; + if (events & POLLIN) + pollfd->events |= G_IO_IN; + if (events & POLLOUT) + pollfd->events |= G_IO_OUT; + + fdsource->pollfds = g_slist_prepend(fdsource->pollfds, pollfd); + g_source_add_poll((GSource *) fdsource, pollfd); +} + +static void pollfd_added_cb(int fd, short events) +{ + g_message("now monitoring fd %d", fd); + pollfd_add(fd, events); +} + +static void pollfd_removed_cb(int fd) +{ + GSList *elem = fdsource->pollfds; + g_message("no longer monitoring fd %d", fd); + + if (!elem) { + g_warning("cannot remove from list as list is empty?"); + return; + } + + do { + GPollFD *pollfd = elem->data; + if (pollfd->fd != fd) + continue; + + g_source_remove_poll((GSource *) fdsource, pollfd); + g_slice_free(GPollFD, pollfd); + fdsource->pollfds = g_slist_delete_link(fdsource->pollfds, elem); + return; + } while ((elem = g_slist_next(elem))); + + g_error("couldn't find fd %d in list\n", fd); +} + +static int setup_pollfds(void) +{ + size_t numfds; + size_t i; + struct fp_pollfd *fpfds; + GSource *gsource = g_source_new(&sourcefuncs, sizeof(struct fdsource)); + + fdsource = (struct fdsource *) gsource; + fdsource->pollfds = NULL; + + numfds = fp_get_pollfds(&fpfds); + if (numfds < 0) { + if (fpfds) + free(fpfds); + return (int) numfds; + } else if (numfds > 0) { + for (i = 0; i < numfds; i++) { + struct fp_pollfd *fpfd = &fpfds[i]; + pollfd_add(fpfd->fd, fpfd->events); + } + } + + free(fpfds); + fp_set_pollfd_notifiers(pollfd_added_cb, pollfd_removed_cb); + g_source_attach(gsource, NULL); + return 0; +} + +static int find_devices(void) +{ + struct fp_dscv_dev **discovered_devs = fp_discover_devs(); + struct fp_dscv_dev *ddev; + int i = 0; + + if (!discovered_devs) + return -1; + + while ((ddev = discovered_devs[i++]) != NULL) { + struct fp_driver *drv = fp_dscv_dev_get_driver(ddev); + struct registered_dev *rdev = g_slice_new0(struct registered_dev); + g_message("found device %s", fp_driver_get_full_name(drv)); + rdev->id = ++last_id; + rdev->ddev = ddev; + dev_catalogue = g_slist_prepend(dev_catalogue, rdev); + } + return 0; +} + +int main(int argc, char **argv) +{ + GMainLoop *loop; + DBusGConnection *connection; + GError *error = NULL; + GObject *obj; + DBusGProxy *driver_proxy; + guint32 request_name_ret; + int r = 0; + + r = fp_init(); + if (r < 0) { + g_error("fprint init failed with error %d\n", r); + return r; + } + + g_type_init(); + loop = g_main_loop_new(NULL, FALSE); + + r = setup_pollfds(); + if (r < 0) { + g_print("pollfd setup failed\n"); + goto err; + } + + r = find_devices(); + if (r < 0) { + g_print("open devices failed\n"); + goto err; + } + + g_print("Launching FprintObject\n"); + + /* Obtain a connection to the session bus */ + connection = dbus_g_bus_get(DBUS_BUS_SESSION, &error); + if (connection == NULL) + g_error("Failed to open connection to bus: %s", error->message); + + obj = g_object_new(FPRINT_TYPE, NULL); + dbus_g_connection_register_g_object(connection, "/net/reactivated/Fprint", + obj); + + driver_proxy = dbus_g_proxy_new_for_name(connection, DBUS_SERVICE_DBUS, + DBUS_PATH_DBUS, DBUS_INTERFACE_DBUS); + + if (!org_freedesktop_DBus_request_name(driver_proxy, FPRINT_SERVICE_NAME, + 0, &request_name_ret, &error)) + g_error("Failed to get name: %s", error->message); + + if (request_name_ret != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) { + g_error ("Got result code %u from requesting name", request_name_ret); + exit(1); + } + + g_message("D-Bus service launched with name: %s", FPRINT_SERVICE_NAME); + + g_message("entering main loop"); + g_main_loop_run(loop); + g_message("main loop completed"); + +err: + fp_exit(); + return 0; +} +