jni.c
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/*
* OpenConnect (SSL + DTLS) VPN client
*
* Copyright © 2013 Kevin Cernekee <cernekee@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1, as published by the Free Software Foundation.
*
* 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
* Lesser General Public License for more details.
*/
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#include <config.h>
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#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <jni.h>
#include "openconnect.h"
struct libctx {
JNIEnv *jenv;
jobject jobj;
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jobject async_lock;
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struct openconnect_info *vpninfo;
int cmd_fd;
int loglevel;
};
static void throw_excep(JNIEnv *jenv, const char *exc, int line)
{
jclass excep;
char msg[64];
snprintf(msg, 64, "%s:%d", __FILE__, line);
(*jenv)->ExceptionClear(jenv);
excep = (*jenv)->FindClass(jenv, exc);
if (excep)
(*jenv)->ThrowNew(jenv, excep, msg);
}
#define OOM(jenv) do { throw_excep(jenv, "java/lang/OutOfMemoryError", __LINE__); } while (0)
static struct libctx *getctx(JNIEnv *jenv, jobject jobj)
{
jclass jcls = (*jenv)->GetObjectClass(jenv, jobj);
jfieldID jfld = (*jenv)->GetFieldID(jenv, jcls, "libctx", "J");
if (!jfld)
return NULL;
return (void *)(unsigned long)(*jenv)->GetLongField(jenv, jobj, jfld);
}
/*
* GetMethodID() and GetFieldID() and NewStringUTF() will automatically throw exceptions on error
*/
static jmethodID get_obj_mid(struct libctx *ctx, jobject jobj, const char *name, const char *sig)
{
jclass jcls = (*ctx->jenv)->GetObjectClass(ctx->jenv, jobj);
jmethodID mid = (*ctx->jenv)->GetMethodID(ctx->jenv, jcls, name, sig);
return mid;
}
static jstring dup_to_jstring(JNIEnv *jenv, const char *in)
{
/*
* Many implementations of NewStringUTF() will return NULL on
* NULL input, but that isn't guaranteed:
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35979
*/
return in ? (*jenv)->NewStringUTF(jenv, in) : NULL;
}
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static int get_cstring(JNIEnv *jenv, jstring in, const char **out)
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{
const char *tmp;
if (in == NULL) {
*out = NULL;
return 0;
}
tmp = (*jenv)->GetStringUTFChars(jenv, in, NULL);
if (!tmp) {
OOM(jenv);
return -1;
}
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*out = tmp;
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return 0;
}
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static void release_cstring(JNIEnv *jenv, jstring jstr, const char *cstr)
{
if (cstr)
(*jenv)->ReleaseStringUTFChars(jenv, jstr, cstr);
}
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static int set_int(struct libctx *ctx, jobject jobj, const char *name, int value)
{
jclass jcls = (*ctx->jenv)->GetObjectClass(ctx->jenv, jobj);
jfieldID jfld = (*ctx->jenv)->GetFieldID(ctx->jenv, jcls, name, "I");
if (!jfld)
return -1;
(*ctx->jenv)->SetIntField(ctx->jenv, jobj, jfld, value);
return 0;
}
static int set_long(struct libctx *ctx, jobject jobj, const char *name, uint64_t value)
{
jclass jcls = (*ctx->jenv)->GetObjectClass(ctx->jenv, jobj);
jfieldID jfld = (*ctx->jenv)->GetFieldID(ctx->jenv, jcls, name, "J");
if (!jfld)
return -1;
(*ctx->jenv)->SetLongField(ctx->jenv, jobj, jfld, (jlong)value);
return 0;
}
static int set_string(struct libctx *ctx, jobject jobj, const char *name, const char *value)
{
jclass jcls = (*ctx->jenv)->GetObjectClass(ctx->jenv, jobj);
jfieldID jfld = (*ctx->jenv)->GetFieldID(ctx->jenv, jcls, name, "Ljava/lang/String;");
jstring jarg;
if (!jfld)
return -1;
jarg = dup_to_jstring(ctx->jenv, value);
if (value && !jarg)
return -1;
(*ctx->jenv)->SetObjectField(ctx->jenv, jobj, jfld, jarg);
return 0;
}
static int add_string(struct libctx *ctx, jclass jcls, jobject jobj,
const char *name, const char *value)
{
jmethodID mid = (*ctx->jenv)->GetMethodID(ctx->jenv, jcls, name, "(Ljava/lang/String;)V");
jstring jarg;
if (!value)
return 0;
if (!mid)
return -1;
jarg = dup_to_jstring(ctx->jenv, value);
if (!jarg)
return -1;
(*ctx->jenv)->CallVoidMethod(ctx->jenv, jobj, mid, jarg);
(*ctx->jenv)->DeleteLocalRef(ctx->jenv, jarg);
return 0;
}
static int add_string_pair(struct libctx *ctx, jclass jcls, jobject jobj,
const char *name, const char *key, const char *value)
{
jmethodID mid = (*ctx->jenv)->GetMethodID(ctx->jenv, jcls, name, "(Ljava/lang/String;Ljava/lang/String;)V");
jstring jarg0, jarg1;
if (!key || !value)
return -1;
if (!mid)
return -1;
jarg0 = dup_to_jstring(ctx->jenv, key);
if (!jarg0)
return -1;
jarg1 = dup_to_jstring(ctx->jenv, value);
if (!jarg1) {
(*ctx->jenv)->DeleteLocalRef(ctx->jenv, jarg0);
return -1;
}
(*ctx->jenv)->CallVoidMethod(ctx->jenv, jobj, mid, jarg0, jarg1);
(*ctx->jenv)->DeleteLocalRef(ctx->jenv, jarg1);
(*ctx->jenv)->DeleteLocalRef(ctx->jenv, jarg0);
return 0;
}
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static int validate_peer_cert_cb(void *privdata, const char *reason)
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{
struct libctx *ctx = privdata;
jstring jreason;
int ret = -1;
jmethodID mid;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return -1;
jreason = dup_to_jstring(ctx->jenv, reason);
if (!jreason)
goto out;
mid = get_obj_mid(ctx, ctx->jobj, "onValidatePeerCert", "(Ljava/lang/String;)I");
if (mid)
ret = (*ctx->jenv)->CallIntMethod(ctx->jenv, ctx->jobj, mid, jreason);
out:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
return ret;
}
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static int write_new_config_cb(void *privdata, const char *buf, int buflen)
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{
struct libctx *ctx = privdata;
jmethodID mid;
jbyteArray jbuf;
int ret = -1;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return -1;
mid = get_obj_mid(ctx, ctx->jobj, "onWriteNewConfig", "([B)I");
if (!mid)
goto out;
jbuf = (*ctx->jenv)->NewByteArray(ctx->jenv, buflen);
if (!jbuf)
goto out;
(*ctx->jenv)->SetByteArrayRegion(ctx->jenv, jbuf, 0, buflen, (jbyte *)buf);
ret = (*ctx->jenv)->CallIntMethod(ctx->jenv, ctx->jobj, mid, jbuf);
out:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
return ret;
}
static void protect_socket_cb(void *privdata, int fd)
{
struct libctx *ctx = privdata;
jmethodID mid;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return;
mid = get_obj_mid(ctx, ctx->jobj, "onProtectSocket", "(I)V");
if (mid)
(*ctx->jenv)->CallVoidMethod(ctx->jenv, ctx->jobj, mid, fd);
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
}
static void stats_cb(void *privdata, const struct oc_stats *stats)
{
struct libctx *ctx = privdata;
jmethodID mid;
jclass jcls;
jobject jobj = NULL;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return;
jcls = (*ctx->jenv)->FindClass(ctx->jenv, "org/infradead/libopenconnect/LibOpenConnect$VPNStats");
if (jcls == NULL)
goto out;
mid = (*ctx->jenv)->GetMethodID(ctx->jenv, jcls, "<init>", "()V");
if (!mid)
goto out;
jobj = (*ctx->jenv)->NewObject(ctx->jenv, jcls, mid);
if (!jobj)
goto out;
if (set_long(ctx, jobj, "txPkts", stats->tx_pkts) ||
set_long(ctx, jobj, "txBytes", stats->tx_bytes) ||
set_long(ctx, jobj, "rxPkts", stats->rx_pkts) ||
set_long(ctx, jobj, "rxBytes", stats->rx_bytes))
goto out;
mid = get_obj_mid(ctx, ctx->jobj, "onStatsUpdate",
"(Lorg/infradead/libopenconnect/LibOpenConnect$VPNStats;)V");
if (mid)
(*ctx->jenv)->CallVoidMethod(ctx->jenv, ctx->jobj, mid, jobj);
out:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
}
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static void setup_tun_cb(void *privdata)
{
struct libctx *ctx = privdata;
jmethodID mid;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return;
mid = get_obj_mid(ctx, ctx->jobj, "onSetupTun", "()V");
if (mid)
(*ctx->jenv)->CallVoidMethod(ctx->jenv, ctx->jobj, mid);
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
}
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static void reconnected_cb(void *privdata)
{
struct libctx *ctx = privdata;
jmethodID mid;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return;
mid = get_obj_mid(ctx, ctx->jobj, "onReconnected", "()V");
if (mid)
(*ctx->jenv)->CallVoidMethod(ctx->jenv, ctx->jobj, mid);
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
}
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static jobject new_auth_form(struct libctx *ctx, struct oc_auth_form *form)
{
jmethodID mid;
jclass jcls;
jobject jobj = NULL;
jcls = (*ctx->jenv)->FindClass(ctx->jenv, "org/infradead/libopenconnect/LibOpenConnect$AuthForm");
if (jcls == NULL)
return NULL;
mid = (*ctx->jenv)->GetMethodID(ctx->jenv, jcls, "<init>", "()V");
if (!mid)
return NULL;
jobj = (*ctx->jenv)->NewObject(ctx->jenv, jcls, mid);
if (!jobj)
return NULL;
if (set_string(ctx, jobj, "banner", form->banner) ||
set_string(ctx, jobj, "message", form->message) ||
set_string(ctx, jobj, "error", form->error) ||
set_string(ctx, jobj, "authID", form->auth_id) ||
set_string(ctx, jobj, "method", form->method) ||
set_string(ctx, jobj, "action", form->action) ||
set_int(ctx, jobj, "authgroupSelection", form->authgroup_selection)) {
return NULL;
}
return jobj;
}
static jobject new_form_choice(struct libctx *ctx, struct oc_choice *choice)
{
jmethodID mid;
jclass jcls;
jobject jobj = NULL;
jcls = (*ctx->jenv)->FindClass(ctx->jenv,
"org/infradead/libopenconnect/LibOpenConnect$FormChoice");
if (jcls == NULL)
return NULL;
mid = (*ctx->jenv)->GetMethodID(ctx->jenv, jcls, "<init>", "()V");
if (!mid)
return NULL;
jobj = (*ctx->jenv)->NewObject(ctx->jenv, jcls, mid);
if (!jobj)
return NULL;
if (set_string(ctx, jobj, "name", choice->name) ||
set_string(ctx, jobj, "label", choice->label) ||
set_string(ctx, jobj, "authType", choice->auth_type) ||
set_string(ctx, jobj, "overrideName", choice->override_name) ||
set_string(ctx, jobj, "overrideLabel", choice->override_label)) {
return NULL;
}
return jobj;
}
static int populate_select_choices(struct libctx *ctx, jobject jopt, struct oc_form_opt_select *opt)
{
jmethodID mid;
int i;
mid = get_obj_mid(ctx, jopt, "addChoice",
"(Lorg/infradead/libopenconnect/LibOpenConnect$FormChoice;)V");
if (!mid)
return -1;
for (i = 0; i < opt->nr_choices; i++) {
jobject jformchoice = new_form_choice(ctx, opt->choices[i]);
if (!jformchoice)
return -1;
(*ctx->jenv)->CallVoidMethod(ctx->jenv, jopt, mid, jformchoice);
}
return 0;
}
static int add_form_option(struct libctx *ctx, jobject jform, struct oc_form_opt *opt, int is_authgroup)
{
jmethodID addOpt;
jobject jopt;
addOpt = get_obj_mid(ctx, jform, "addOpt",
"(Z)Lorg/infradead/libopenconnect/LibOpenConnect$FormOpt;");
if (!addOpt)
return -1;
jopt = (*ctx->jenv)->CallObjectMethod(ctx->jenv, jform, addOpt, is_authgroup);
if (jopt == NULL)
return -1;
if (set_int(ctx, jopt, "type", opt->type) ||
set_string(ctx, jopt, "name", opt->name) ||
set_string(ctx, jopt, "label", opt->label) ||
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set_string(ctx, jopt, "value", opt->_value) ||
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set_long(ctx, jopt, "flags", opt->flags))
return -1;
if (opt->type == OC_FORM_OPT_SELECT &&
populate_select_choices(ctx, jopt, (struct oc_form_opt_select *)opt))
return -1;
return 0;
}
static char *lookup_choice_name(struct oc_form_opt_select *opt, const char *name)
{
int i;
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/* opt->_value is NOT a caller-allocated string for OC_FORM_OPT_SELECT */
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for (i = 0; i < opt->nr_choices; i++)
if (!strcmp(opt->choices[i]->name, name))
return opt->choices[i]->name;
return NULL;
}
static int process_auth_form_cb(void *privdata, struct oc_auth_form *form)
{
struct libctx *ctx = privdata;
jobject jform;
jmethodID callback, getOptValue;
struct oc_form_opt *opt;
jint ret;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return -1;
/* create and populate new AuthForm object and option/choice lists */
jform = new_auth_form(ctx, form);
if (!jform)
goto err;
getOptValue = get_obj_mid(ctx, jform, "getOptValue", "(Ljava/lang/String;)Ljava/lang/String;");
if (!getOptValue)
goto err;
for (opt = form->opts; opt; opt = opt->next) {
int is_authgroup = opt == (void *)form->authgroup_opt;
if (add_form_option(ctx, jform, opt, is_authgroup) < 0)
goto err;
}
/* invoke onProcessAuthForm callback */
callback = get_obj_mid(ctx, ctx->jobj, "onProcessAuthForm",
"(Lorg/infradead/libopenconnect/LibOpenConnect$AuthForm;)I");
if (!callback)
goto err;
ret = (*ctx->jenv)->CallIntMethod(ctx->jenv, ctx->jobj, callback, jform);
/* copy any populated form fields back into the C structs */
for (opt = form->opts; opt; opt = opt->next) {
jstring jname, jvalue;
jname = dup_to_jstring(ctx->jenv, opt->name);
if (!jname)
goto err;
jvalue = (*ctx->jenv)->CallObjectMethod(ctx->jenv, jform, getOptValue, jname);
if (jvalue) {
const char *tmp = (*ctx->jenv)->GetStringUTFChars(ctx->jenv, jvalue, NULL);
if (!tmp)
goto err;
if (opt->type == OC_FORM_OPT_SELECT)
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opt->_value = lookup_choice_name((void *)opt, tmp);
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free(opt->_value);
opt->_value = strdup(tmp);
if (!opt->_value)
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OOM(ctx->jenv);
}
(*ctx->jenv)->ReleaseStringUTFChars(ctx->jenv, jvalue, tmp);
}
}
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
return ret;
err:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
return -1;
}
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static void __attribute__ ((format(printf, 3, 4)))
progress_cb(void *privdata, int level, const char *fmt, ...)
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{
struct libctx *ctx = privdata;
va_list ap;
char *msg;
jstring jmsg;
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int ret, loglevel;
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jmethodID mid;
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(*ctx->jenv)->MonitorEnter(ctx->jenv, ctx->async_lock);
loglevel = ctx->loglevel;
(*ctx->jenv)->MonitorExit(ctx->jenv, ctx->async_lock);
if (level > loglevel)
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return;
va_start(ap, fmt);
ret = vasprintf(&msg, fmt, ap);
va_end(ap);
if (ret < 0) {
OOM(ctx->jenv);
return;
}
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return;
jmsg = dup_to_jstring(ctx->jenv, msg);
free(msg);
if (!jmsg)
goto out;
mid = get_obj_mid(ctx, ctx->jobj, "onProgress", "(ILjava/lang/String;)V");
if (mid)
(*ctx->jenv)->CallVoidMethod(ctx->jenv, ctx->jobj, mid, level, jmsg);
out:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
}
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static int lock_token_cb(void *privdata)
{
struct libctx *ctx = privdata;
jmethodID mid;
int ret = -1;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return -1;
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mid = get_obj_mid(ctx, ctx->jobj, "onTokenLock", "()I");
if (mid)
ret = (*ctx->jenv)->CallIntMethod(ctx->jenv, ctx->jobj, mid);
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(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
return ret;
}
static int unlock_token_cb(void *privdata, const char *new_token)
{
struct libctx *ctx = privdata;
jstring jtoken;
int ret = -1;
jmethodID mid;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
return -1;
jtoken = dup_to_jstring(ctx->jenv, new_token);
if (!jtoken)
goto out;
mid = get_obj_mid(ctx, ctx->jobj, "onTokenUnlock", "(Ljava/lang/String;)I");
if (mid)
ret = (*ctx->jenv)->CallIntMethod(ctx->jenv, ctx->jobj, mid, jtoken);
out:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
return ret;
}
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/* Library init/uninit */
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static jobject init_async_lock(struct libctx *ctx)
{
jclass jcls = (*ctx->jenv)->GetObjectClass(ctx->jenv, ctx->jobj);
jfieldID jfld = (*ctx->jenv)->GetFieldID(ctx->jenv, jcls, "asyncLock", "Ljava/lang/Object;");
jobject jobj = (*ctx->jenv)->GetObjectField(ctx->jenv, ctx->jobj, jfld);
if (jobj)
jobj = (*ctx->jenv)->NewGlobalRef(ctx->jenv, jobj);
return jobj;
}
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JNIEXPORT jlong JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_init(
JNIEnv *jenv, jobject jobj, jstring juseragent)
{
char *useragent;
struct libctx *ctx = calloc(1, sizeof(*ctx));
if (!ctx)
goto bad;
ctx->jenv = jenv;
ctx->jobj = (*jenv)->NewGlobalRef(jenv, jobj);
if (!ctx->jobj)
goto bad_free_ctx;
623
624
625
ctx->async_lock = init_async_lock(ctx);
if (!ctx->async_lock)
goto bad_delete_obj_ref;
626
627
628
629
630
631
632
633
634
635
636
637
useragent = (char *)(*jenv)->GetStringUTFChars(jenv, juseragent, NULL);
if (!useragent)
goto bad_delete_ref;
ctx->vpninfo = openconnect_vpninfo_new(useragent, validate_peer_cert_cb,
write_new_config_cb, process_auth_form_cb,
progress_cb, ctx);
(*jenv)->ReleaseStringUTFChars(jenv, juseragent, useragent);
if (!ctx->vpninfo)
goto bad_delete_ref;
638
639
openconnect_set_token_callbacks(ctx->vpninfo, ctx, lock_token_cb,
unlock_token_cb);
640
641
openconnect_set_protect_socket_handler(ctx->vpninfo, protect_socket_cb);
openconnect_set_stats_handler(ctx->vpninfo, stats_cb);
642
openconnect_set_setup_tun_handler(ctx->vpninfo, setup_tun_cb);
643
openconnect_set_reconnected_handler(ctx->vpninfo, reconnected_cb);
644
645
646
647
648
649
650
651
652
653
654
655
ctx->cmd_fd = openconnect_setup_cmd_pipe(ctx->vpninfo);
if (ctx->cmd_fd < 0)
goto bad_free_vpninfo;
ctx->loglevel = PRG_DEBUG;
return (jlong)(unsigned long)ctx;
bad_free_vpninfo:
openconnect_vpninfo_free(ctx->vpninfo);
bad_delete_ref:
656
657
(*jenv)->DeleteGlobalRef(jenv, ctx->async_lock);
bad_delete_obj_ref:
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
(*jenv)->DeleteGlobalRef(jenv, ctx->jobj);
bad_free_ctx:
free(ctx);
bad:
OOM(jenv);
return 0;
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_free(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return;
openconnect_vpninfo_free(ctx->vpninfo);
674
(*jenv)->DeleteGlobalRef(jenv, ctx->async_lock);
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
(*jenv)->DeleteGlobalRef(jenv, ctx->jobj);
free(ctx);
}
static void write_cmd_pipe(JNIEnv *jenv, jobject jobj, char cmd)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return;
if (write(ctx->cmd_fd, &cmd, 1) < 0) {
/* probably dead already */
}
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_doCancel(
JNIEnv *jenv, jobject jobj)
{
write_cmd_pipe(jenv, jobj, OC_CMD_CANCEL);
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_pause(
JNIEnv *jenv, jobject jobj)
{
write_cmd_pipe(jenv, jobj, OC_CMD_PAUSE);
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_requestStats(
JNIEnv *jenv, jobject jobj)
{
write_cmd_pipe(jenv, jobj, OC_CMD_STATS);
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_globalInit(
JNIEnv *jenv, jclass jcls)
{
openconnect_init_ssl();
}
JNIEXPORT jint JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_obtainCookie(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return 0;
721
return openconnect_obtain_cookie(ctx->vpninfo);
722
723
724
}
/* special handling: caller-allocated buffer */
725
JNIEXPORT jstring JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_getPeerCertHash(
726
727
728
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
729
const char *hash;
730
731
jstring jresult = NULL;
733
return NULL;
734
735
hash = openconnect_get_peer_cert_hash(ctx->vpninfo);
if (!hash)
736
return NULL;
737
jresult = dup_to_jstring(ctx->jenv, hash);
738
739
740
741
742
743
if (!jresult)
OOM(ctx->jenv);
return jresult;
}
/* special handling: callee-allocated, caller-freed string */
744
JNIEXPORT jstring JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_getPeerCertDetails(
745
746
747
748
749
750
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
char *buf = NULL;
jstring jresult = NULL;
752
return NULL;
753
buf = openconnect_get_peer_cert_details(ctx->vpninfo);
754
755
756
757
758
759
760
if (!buf)
return NULL;
jresult = dup_to_jstring(ctx->jenv, buf);
if (!jresult)
OOM(ctx->jenv);
761
openconnect_free_cert_info(ctx->vpninfo, buf);
762
763
764
765
return jresult;
}
/* special handling: callee-allocated, caller-freed binary buffer */
766
JNIEXPORT jbyteArray JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_getPeerCertDER(
767
768
769
770
771
772
773
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
unsigned char *buf = NULL;
int ret;
jbyteArray jresult = NULL;
775
return NULL;
776
ret = openconnect_get_peer_cert_DER(ctx->vpninfo, &buf);
777
778
779
780
781
782
783
if (ret < 0)
return NULL;
jresult = (*ctx->jenv)->NewByteArray(ctx->jenv, ret);
if (jresult)
(*ctx->jenv)->SetByteArrayRegion(ctx->jenv, jresult, 0, ret, (jbyte *) buf);
784
openconnect_free_cert_info(ctx->vpninfo, buf);
785
786
787
return jresult;
}
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
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809
810
811
812
813
814
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820
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822
823
824
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826
827
828
829
830
831
832
833
834
835
836
/* special handling: callee-allocated, caller-freed binary buffer */
JNIEXPORT jbyteArray JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_getPeerCertChain(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
struct oc_cert *chain = NULL, *p;
int cert_list_size, i;
jobjectArray jresult = NULL;
jclass jcls;
if (!ctx)
goto err;
cert_list_size = openconnect_get_peer_cert_chain(ctx->vpninfo, &chain);
if (cert_list_size <= 0)
goto err;
jcls = (*ctx->jenv)->FindClass(ctx->jenv, "[B");
if (!jcls)
goto err;
jresult = (*ctx->jenv)->NewObjectArray(ctx->jenv, cert_list_size, jcls, NULL);
if (!jresult)
goto err;
if ((*ctx->jenv)->PushLocalFrame(ctx->jenv, 256) < 0)
goto err;
for (i = 0, p = chain; i < cert_list_size; i++, p++) {
jbyteArray cert = (*ctx->jenv)->NewByteArray(ctx->jenv, p->der_len);
if (!cert)
goto err2;
(*ctx->jenv)->SetByteArrayRegion(ctx->jenv, cert, 0, p->der_len, (jbyte *)p->der_data);
(*ctx->jenv)->SetObjectArrayElement(ctx->jenv, jresult, i, cert);
}
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
openconnect_free_peer_cert_chain(ctx->vpninfo, chain);
return jresult;
err2:
(*ctx->jenv)->PopLocalFrame(ctx->jenv, NULL);
err:
if (jresult)
(*ctx->jenv)->DeleteLocalRef(ctx->jenv, jresult);
if (chain)
openconnect_free_peer_cert_chain(ctx->vpninfo, chain);
return NULL;
}
837
838
839
840
841
/* special handling: two string arguments */
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_setClientCert(
JNIEnv *jenv, jobject jobj, jstring jcert, jstring jsslkey)
{
struct libctx *ctx = getctx(jenv, jobj);
842
const char *cert = NULL, *sslkey = NULL;
844
845
846
847
if (!ctx)
return;
if (!get_cstring(ctx->jenv, jcert, &cert) &&
848
849
!get_cstring(ctx->jenv, jsslkey, &sslkey))
openconnect_set_client_cert(ctx->vpninfo, cert, sslkey);
851
852
853
release_cstring(ctx->jenv, jcert, cert);
release_cstring(ctx->jenv, jsslkey, sslkey);
return;
854
855
856
857
858
859
860
}
/* special handling: multiple string arguments */
JNIEXPORT jint JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_setupTunDevice(
JNIEnv *jenv, jobject jobj, jstring jarg0, jstring jarg1)
{
struct libctx *ctx = getctx(jenv, jobj);
861
862
863
const char *arg0 = NULL, *arg1 = NULL;
int ret = -ENOMEM;
864
865
866
867
if (!ctx)
return -EINVAL;
if (!get_cstring(ctx->jenv, jarg0, &arg0) &&
868
869
870
871
872
873
!get_cstring(ctx->jenv, jarg1, &arg1))
ret = openconnect_setup_tun_device(ctx->vpninfo, arg0, arg1);
release_cstring(ctx->jenv, jarg0, arg0);
release_cstring(ctx->jenv, jarg1, arg1);
return ret;
874
875
876
877
878
879
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_setCSDWrapper(
JNIEnv *jenv, jobject jobj, jstring jarg0, jstring jarg1, jstring jarg2)
{
struct libctx *ctx = getctx(jenv, jobj);
880
const char *arg0 = NULL, *arg1 = NULL, *arg2 = NULL;
882
883
884
885
if (!ctx)
return;
if (!get_cstring(ctx->jenv, jarg0, &arg0) &&
886
887
888
889
!get_cstring(ctx->jenv, jarg1, &arg1) &&
!get_cstring(ctx->jenv, jarg2, &arg2)) {
openconnect_setup_csd(ctx->vpninfo, getuid(), 1, arg0);
890
891
if (arg1) openconnect_set_csd_environ(ctx->vpninfo, "TMPDIR", arg1);
if (arg2) openconnect_set_csd_environ(ctx->vpninfo, "PATH", arg2);
894
895
896
release_cstring(ctx->jenv, jarg0, arg0);
release_cstring(ctx->jenv, jarg1, arg1);
release_cstring(ctx->jenv, jarg2, arg2);
897
898
899
900
901
902
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_setMobileInfo(
JNIEnv *jenv, jobject jobj, jstring jarg0, jstring jarg1, jstring jarg2)
{
struct libctx *ctx = getctx(jenv, jobj);
903
904
const char *arg0 = NULL, *arg1 = NULL, *arg2 = NULL;
905
906
907
908
if (!ctx)
return;
if (!get_cstring(ctx->jenv, jarg0, &arg0) &&
909
910
911
912
913
914
915
!get_cstring(ctx->jenv, jarg1, &arg1) &&
!get_cstring(ctx->jenv, jarg2, &arg2))
openconnect_set_mobile_info(ctx->vpninfo, arg0, arg1, arg2);
release_cstring(ctx->jenv, jarg0, arg0);
release_cstring(ctx->jenv, jarg1, arg1);
release_cstring(ctx->jenv, jarg2, arg2);
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
}
/* class methods (general library info) */
JNIEXPORT jstring JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_getVersion(
JNIEnv *jenv, jclass jcls)
{
return dup_to_jstring(jenv, openconnect_get_version());
}
JNIEXPORT jboolean JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_hasPKCS11Support(
JNIEnv *jenv, jclass jcls)
{
return openconnect_has_pkcs11_support();
}
JNIEXPORT jboolean JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_hasTSSBlobSupport(
JNIEnv *jenv, jclass jcls)
{
return openconnect_has_tss_blob_support();
}
938
939
940
941
942
943
JNIEXPORT jboolean JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_hasTSS2BlobSupport(
JNIEnv *jenv, jclass jcls)
{
return openconnect_has_tss2_blob_support();
}
944
945
946
947
948
949
950
951
952
953
954
955
JNIEXPORT jboolean JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_hasStokenSupport(
JNIEnv *jenv, jclass jcls)
{
return openconnect_has_stoken_support();
}
JNIEXPORT jboolean JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_hasOATHSupport(
JNIEnv *jenv, jclass jcls)
{
return openconnect_has_oath_support();
}
956
957
958
959
960
961
JNIEXPORT jboolean JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_hasYubiOATHSupport(
JNIEnv *jenv, jclass jcls)
{
return openconnect_has_yubioath_support();
}
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* simple cases: void or int params */
JNIEXPORT jint JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_getPort(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return -EINVAL;
return openconnect_get_port(ctx->vpninfo);
}
JNIEXPORT jint JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_passphraseFromFSID(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return -EINVAL;
return openconnect_passphrase_from_fsid(ctx->vpninfo);
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_clearCookie(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return;
openconnect_clear_cookie(ctx->vpninfo);
}
JNIEXPORT void JNICALL Java_org_infradead_libopenconnect_LibOpenConnect_resetSSL(
JNIEnv *jenv, jobject jobj)
{
struct libctx *ctx = getctx(jenv, jobj);
if (!ctx)
return;