mirror of
http://galexander.org/git/simplesshd.git
synced 2025-01-01 02:40:52 +00:00
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
#include <jni.h>
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#include <sys/types.h>
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#include <signal.h>
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#include <unistd.h>
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/* XXX - do i need a function to generate host keys? DROPBEAR_DELAY_HOSTKEY */
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/* XXX - a C-callable interface to get property strings from the java side (paths, etc) */
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static JNIEnv *env;
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static jclass cl_string;
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static jclass cl_simplesshdservice;
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static jfieldID fid_sss_sshd_pid;
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static int
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jni_init(JNIEnv *env_)
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{
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env = env_;
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#define CLASS(var, id) \
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cl_##var = (*env)->FindClass(env, id); \
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if (!cl_##var) return 0;
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#define METHOD(var, mycl, id, sig) \
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mid_##var = (*env)->GetMethodID(env, cl_##mycl, id, sig); \
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if (!mid_##var) return 0;
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#define FIELD(var, mycl, id, sig) \
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fid_##var = (*env)->GetFieldID(env, cl_##mycl, id, sig); \
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if (!fid_##var) return 0;
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#define STFIELD(var, mycl, id, sig) \
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fid_##var = (*env)->GetStaticFieldID(env, cl_##mycl, id, sig); \
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if (!fid_##var) return 0;
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CLASS(string, "java/lang/String")
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CLASS(simplesshdservice, "org/galexander/sshd/SimpleSSHDService")
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STFIELD(sss_sshd_pid, simplesshdservice, "sshd_pid", "I")
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return 1;
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}
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JNIEXPORT void JNICALL
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Java_org_galexander_sshd_SimpleSSHDService_start_1sshd(JNIEnv *env_,
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jobject this)
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{
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pid_t pid;
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if (!jni_init(env_)) {
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return;
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}
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pid = fork();
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if (pid == 0) {
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/* XXX - call dropbear main() */
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} else {
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(*env)->SetStaticIntField(env, cl_simplesshdservice, fid_sss_sshd_pid, pid);
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}
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}
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JNIEXPORT void JNICALL
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Java_org_galexander_sshd_SimpleSSHDService_stop_1sshd(JNIEnv *env_, jobject this)
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{
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pid_t pid;
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if (!jni_init(env_)) {
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return;
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}
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pid = (*env)->GetStaticIntField(env, cl_simplesshdservice, fid_sss_sshd_pid);
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kill(pid, SIGKILL);
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(*env)->SetStaticIntField(env, cl_simplesshdservice, fid_sss_sshd_pid, 0);
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}
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