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-rw-r--r--main/openvpn/src/openvpn/init.c10
-rw-r--r--main/openvpn/src/openvpn/mudp.c2
-rw-r--r--main/openvpn/src/openvpn/options.c16
-rw-r--r--main/openvpn/src/openvpn/options.h4
-rw-r--r--main/openvpn/src/openvpn/push.c14
-rw-r--r--main/openvpn/src/openvpn/ssl.c7
-rw-r--r--main/openvpn/src/openvpn/ssl.h2
-rw-r--r--main/openvpn/src/openvpn/ssl_common.h2
8 files changed, 38 insertions, 19 deletions
diff --git a/main/openvpn/src/openvpn/init.c b/main/openvpn/src/openvpn/init.c
index 6137588d..6380719f 100644
--- a/main/openvpn/src/openvpn/init.c
+++ b/main/openvpn/src/openvpn/init.c
@@ -1718,7 +1718,8 @@ pull_permission_mask (const struct context *c)
| OPT_P_MESSAGES
| OPT_P_EXPLICIT_NOTIFY
| OPT_P_ECHO
- | OPT_P_PULL_MODE;
+ | OPT_P_PULL_MODE
+ | OPT_P_SESSION_ID;
if (!c->options.route_nopull)
flags |= (OPT_P_ROUTE | OPT_P_IPWIN32);
@@ -1795,6 +1796,13 @@ do_deferred_options (struct context *c, const unsigned int found)
msg (D_PUSH, "OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified");
if (found & OPT_P_SETENV)
msg (D_PUSH, "OPTIONS IMPORT: environment modified");
+
+ if (found & OPT_P_SESSION_ID)
+ {
+ msg (D_PUSH, "OPTIONS IMPORT: session-id set");
+ c->c2.tls_multi->use_session_id = true;
+ c->c2.tls_multi->vpn_session_id = c->options.vpn_session_id;
+ }
}
/*
diff --git a/main/openvpn/src/openvpn/mudp.c b/main/openvpn/src/openvpn/mudp.c
index f7ab6253..7a6911ca 100644
--- a/main/openvpn/src/openvpn/mudp.c
+++ b/main/openvpn/src/openvpn/mudp.c
@@ -112,7 +112,7 @@ multi_get_create_instance_udp (struct multi_context *m)
if (op == P_DATA_V2)
{
- sess_id = (*(uint32_t*)ptr) >> 8;
+ sess_id = ntohl((*(uint32_t*)ptr)) & 0xFFFFFF;
if ((sess_id < m->max_clients) && (m->instances[sess_id]))
{
mi = m->instances[sess_id];
diff --git a/main/openvpn/src/openvpn/options.c b/main/openvpn/src/openvpn/options.c
index 6adccc6f..da143114 100644
--- a/main/openvpn/src/openvpn/options.c
+++ b/main/openvpn/src/openvpn/options.c
@@ -3913,19 +3913,9 @@ apply_push_options (struct options *options,
++line_num;
if (parse_line (line, p, SIZE (p), file, line_num, msglevel, &options->gc))
{
- if (streq(p[0], "session_id"))
- {
- /* Server supports P_DATA_V2 */
- tls_multi->vpn_session_id = atoi(p[1]);
- tls_multi->use_session_id = true;
- msg(D_PUSH, "session id: %d", tls_multi->vpn_session_id);
- }
- else
- {
add_option (options, p, file, line_num, 0, msglevel, permission_mask, option_types_found, es);
}
}
- }
return true;
}
@@ -6986,6 +6976,12 @@ add_option (struct options *options,
options->persist_mode = 1;
}
#endif
+ else if (streq (p[0], "session-id"))
+ {
+ VERIFY_PERMISSION (OPT_P_SESSION_ID);
+ options->use_session_id = true;
+ options->vpn_session_id = atoi(p[1]);
+ }
else
{
int i;
diff --git a/main/openvpn/src/openvpn/options.h b/main/openvpn/src/openvpn/options.h
index 77c942ca..537b8314 100644
--- a/main/openvpn/src/openvpn/options.h
+++ b/main/openvpn/src/openvpn/options.h
@@ -591,6 +591,9 @@ struct options
bool show_net_up;
int route_method;
#endif
+
+ bool use_session_id;
+ uint32_t vpn_session_id;
};
#define streq(x, y) (!strcmp((x), (y)))
@@ -626,6 +629,7 @@ struct options
#define OPT_P_SOCKBUF (1<<25)
#define OPT_P_SOCKFLAGS (1<<26)
#define OPT_P_CONNECTION (1<<27)
+#define OPT_P_SESSION_ID (1<<28)
#define OPT_P_DEFAULT (~(OPT_P_INSTANCE|OPT_P_PULL_MODE))
diff --git a/main/openvpn/src/openvpn/push.c b/main/openvpn/src/openvpn/push.c
index 028d838e..af351763 100644
--- a/main/openvpn/src/openvpn/push.c
+++ b/main/openvpn/src/openvpn/push.c
@@ -303,9 +303,17 @@ send_push_reply (struct context *c)
if (multi_push)
buf_printf (&buf, ",push-continuation 1");
- /* Send session_id if client supports it */
- if (c->c2.tls_multi->peer_info && strstr(c->c2.tls_multi->peer_info, "IV_PROTO=2")) {
- buf_printf(&buf, ",session_id %d", c->c2.tls_multi->vpn_session_id);
+ /* Send session-id if client supports it */
+ if (c->c2.tls_multi->peer_info)
+ {
+ const char* proto_str = strstr(c->c2.tls_multi->peer_info, "IV_PROTO=");
+ if (proto_str)
+ {
+ int proto = 0;
+ int r = sscanf(proto_str, "IV_PROTO=%d", &proto);
+ if ((r == 1) && (proto >= 2))
+ buf_printf(&buf, ",session-id %d", c->c2.tls_multi->vpn_session_id);
+ }
}
if (BLEN (&buf) > sizeof(cmd)-1)
diff --git a/main/openvpn/src/openvpn/ssl.c b/main/openvpn/src/openvpn/ssl.c
index 929f95fa..e1e0f31d 100644
--- a/main/openvpn/src/openvpn/ssl.c
+++ b/main/openvpn/src/openvpn/ssl.c
@@ -2826,7 +2826,10 @@ tls_pre_decrypt (struct tls_multi *multi,
opt->flags &= multi->opt.crypto_flags_and;
opt->flags |= multi->opt.crypto_flags_or;
- ASSERT (buf_advance (buf, op == P_DATA_V1 ? 1 : 4));
+ ASSERT (buf_advance (buf, 1));
+ if (op == P_DATA_V2) {
+ buf_advance (buf, 3);
+ }
++ks->n_packets;
ks->n_bytes += buf->len;
@@ -3403,7 +3406,7 @@ tls_post_encrypt (struct tls_multi *multi, struct buffer *buf)
if (!multi->opt.server && multi->use_session_id)
{
- sess = ((P_DATA_V2 << P_OPCODE_SHIFT) | ks->key_id) | (multi->vpn_session_id << 8);
+ sess = htonl(((P_DATA_V2 << P_OPCODE_SHIFT) | ks->key_id) << 24 | (multi->vpn_session_id & 0xFFFFFF));
ASSERT (buf_write_prepend (buf, &sess, 4));
}
else
diff --git a/main/openvpn/src/openvpn/ssl.h b/main/openvpn/src/openvpn/ssl.h
index 9bdd641f..a53f4aef 100644
--- a/main/openvpn/src/openvpn/ssl.h
+++ b/main/openvpn/src/openvpn/ssl.h
@@ -60,7 +60,7 @@
#define P_CONTROL_V1 4 /* control channel packet (usually TLS ciphertext) */
#define P_ACK_V1 5 /* acknowledgement for packets received */
#define P_DATA_V1 6 /* data channel packet */
-#define P_DATA_V2 9 /* data channel packet with session_id */
+#define P_DATA_V2 9 /* data channel packet with session-id */
/* indicates key_method >= 2 */
#define P_CONTROL_HARD_RESET_CLIENT_V2 7 /* initial key from client, forget previous state */
diff --git a/main/openvpn/src/openvpn/ssl_common.h b/main/openvpn/src/openvpn/ssl_common.h
index 2fc72aa6..3288adf3 100644
--- a/main/openvpn/src/openvpn/ssl_common.h
+++ b/main/openvpn/src/openvpn/ssl_common.h
@@ -497,7 +497,7 @@ struct tls_multi
/* For P_DATA_V2 */
uint32_t vpn_session_id;
- int use_session_id;
+ bool use_session_id;
/*
* Our session objects.
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 15:43:02 +0000