From: Johannes Maximilian Kuehn <kuehn@ntp.org>
Date: Fri, 5 Sep 2008 00:08:08 +0000 (+0000)
Subject: kod_management.h, main.c, kod_management.c:
X-Git-Tag: NTP_4_2_5P142~12^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bedade77b850ac43dcaedeef1aaa20d49c251920;p=thirdparty%2Fntp.git

kod_management.h, main.c, kod_management.c:
  Fixes
networking.h:
  fixes + broadcast mode
crypto.h:
  BitKeeper file /pogo/users/kuehn/rsync_repo/ntp-dev/gsoc_sntp/crypto.h
crypto.c:
  BitKeeper file /pogo/users/kuehn/rsync_repo/ntp-dev/gsoc_sntp/crypto.c
networking.c:
  Fixes
  Broadcast mode
sntp-opts.def:
  Added new options, removed host list

bk: 48c07868HN5rhS7s4nhzvoR89eynGg
---

diff --git a/gsoc_sntp/crypto.c b/gsoc_sntp/crypto.c
new file mode 100644
index 000000000..9fba3de87
--- /dev/null
+++ b/gsoc_sntp/crypto.c
@@ -0,0 +1,97 @@
+#include "crypto.h"
+
+int key_cnt = 0;
+
+int
+auth_md5 (
+		void *pkt_data,
+		int mac_size,
+		char *cmp_key,
+		int cmp_size
+	 )
+{
+	register int a;
+	MD5Context ctx;
+	char digest[16];
+	
+	MD5Init(&ctx);
+	unsigned char *digest_data = (unsigned char *) malloc(sizeof(char) * (LEN_PKT_NOMAC + cmp_size));
+
+	for(a=0; a<LEN_PKT_NOMAC; a++)
+		digest_data[a] = (unsigned char) pkt_data[a];
+
+	for(a=0; a<cmp_size; a++)
+		digest_data[LEN_PKT_NOMAC + a] = (unsigned char) cmp_key[a];
+
+
+	MD5Update(&ctx, digest_data, LEN_PKT_NOMAC + cmp_size);
+	MD5Final(digest, &ctx);
+
+	free(digest_data);
+
+	if(strncmp(cmp_key, digest, cmp_size) != 0) {
+		return 0;
+	}
+	else {
+		return 1;
+	}
+}
+
+int
+auth_init (
+		char *keyfile,
+		struct key *keys
+		)
+{
+	char kbuf[96];
+	FILE *keyf = fopen(keyfile, "r"); 
+	register int a, line_cnt;
+	struct key *prev;
+
+	if(keyf == NULL) {
+		/* Do something about it */
+	}
+
+	line_cnt = 0;
+
+	while(!feof(keyf)) {
+		struct key *act = (struct key *) malloc(sizeof(struct key));
+
+		fgets(kbuf, 96, keyf);
+
+		sscanf(fbuf, "%i %c %16s", act->key_id, act->type, act->key_seq);
+
+#ifdef DEBUG
+		printf("auth_init: key_id %i type %c with key %s\n", act->key_id, act->type, act->key_seq);
+#endif
+
+		if(line_cnt == 0) {
+			keys = act;
+			prev = act;
+		}
+		else {
+			prev->next = act;
+			prev = act;
+		}
+
+		line_cnt++;
+	}
+
+	fclose(keyf);
+
+	key_cnt = line_cnt;
+
+	return line_cnt;
+}
+
+
+
+
+
+
+	}
+	
+	rewind(keyf);
+
+
+
diff --git a/gsoc_sntp/crypto.h b/gsoc_sntp/crypto.h
new file mode 100644
index 000000000..126071893
--- /dev/null
+++ b/gsoc_sntp/crypto.h
@@ -0,0 +1,19 @@
+#ifndef CRYPTO_H
+#define CRYPTO_H
+
+#include <ntp_md5.h>
+#include <string.h>
+
+/* #include "sntp-opts.h" */
+
+int auth_md5(void *pkt_data, int mac_size, char *cmp_key, int cmp_size);
+int auth_init(char *keyfile, struct key *keys);
+
+struct key {
+	unsigned int key_id;
+	char type;
+	char key_seq[16];
+	struct key *next;
+};
+
+#endif