New upstream version 2.4.0upstream/2.4.0

1 files changed, 73 insertions, 63 deletions

diff --git a/src/openvpn/comp.c b/src/openvpn/comp.c
index 499fef9..0182a7c 100644
--- a/src/openvpn/comp.c
+++ b/src/openvpn/comp.c
@@ -5,7 +5,7 @@
  *             packet encryption, packet authentication, and
  *             packet compression.
  *
- *  Copyright (C) 2002-2012 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ *  Copyright (C) 2002-2017 OpenVPN Technologies, Inc. <sales@openvpn.net>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2
@@ -41,59 +41,67 @@
 struct compress_context *
 comp_init(const struct compress_options *opt)
 {
-  struct compress_context *compctx = NULL;
-  switch (opt->alg)
+    struct compress_context *compctx = NULL;
+    switch (opt->alg)
     {
-    case COMP_ALG_STUB:
-      ALLOC_OBJ_CLEAR (compctx, struct compress_context);
-      compctx->flags = opt->flags;
-      compctx->alg = comp_stub_alg;
-      break;
-    case COMP_ALGV2_UNCOMPRESSED:
-      ALLOC_OBJ_CLEAR (compctx, struct compress_context);
-      compctx->flags = opt->flags;
-      compctx->alg = compv2_stub_alg;
-      break;
+        case COMP_ALG_STUB:
+            ALLOC_OBJ_CLEAR(compctx, struct compress_context);
+            compctx->flags = opt->flags;
+            compctx->alg = comp_stub_alg;
+            break;
+
+        case COMP_ALGV2_UNCOMPRESSED:
+            ALLOC_OBJ_CLEAR(compctx, struct compress_context);
+            compctx->flags = opt->flags;
+            compctx->alg = compv2_stub_alg;
+            break;
+
 #ifdef ENABLE_LZO
-    case COMP_ALG_LZO:
-      ALLOC_OBJ_CLEAR (compctx, struct compress_context);
-      compctx->flags = opt->flags;
-      compctx->alg = lzo_alg;
-      break;
+        case COMP_ALG_LZO:
+            ALLOC_OBJ_CLEAR(compctx, struct compress_context);
+            compctx->flags = opt->flags;
+            compctx->alg = lzo_alg;
+            break;
+
 #endif
 #ifdef ENABLE_LZ4
-    case COMP_ALG_LZ4:
-      ALLOC_OBJ_CLEAR (compctx, struct compress_context);
-      compctx->flags = opt->flags;
-      compctx->alg = lz4_alg;
-      break;
-    case COMP_ALGV2_LZ4:
-      ALLOC_OBJ_CLEAR (compctx, struct compress_context);
-      compctx->flags = opt->flags;
-      compctx->alg = lz4v2_alg;
-      break;
+        case COMP_ALG_LZ4:
+            ALLOC_OBJ_CLEAR(compctx, struct compress_context);
+            compctx->flags = opt->flags;
+            compctx->alg = lz4_alg;
+            break;
+
+        case COMP_ALGV2_LZ4:
+            ALLOC_OBJ_CLEAR(compctx, struct compress_context);
+            compctx->flags = opt->flags;
+            compctx->alg = lz4v2_alg;
+            break;
 #endif
     }
-  if (compctx)
-    (*compctx->alg.compress_init)(compctx);
+    if (compctx)
+    {
+        (*compctx->alg.compress_init)(compctx);
+    }
 
-  return compctx;
+    return compctx;
 }
 
 /* In the v2 compression schemes, an uncompressed packet has
  * has no opcode in front, unless the first byte is 0x50. In this
  * case the packet needs to be escaped */
 void
-compv2_escape_data_ifneeded (struct buffer *buf)
+compv2_escape_data_ifneeded(struct buffer *buf)
 {
-    uint8_t *head = BPTR (buf);
+    uint8_t *head = BPTR(buf);
     if (head[0] != COMP_ALGV2_INDICATOR_BYTE)
-	return;
+    {
+        return;
+    }
 
     /* Header is 0x50 */
     ASSERT(buf_prepend(buf, 2));
 
-    head = BPTR (buf);
+    head = BPTR(buf);
     head[0] = COMP_ALGV2_INDICATOR_BYTE;
     head[1] = COMP_ALGV2_UNCOMPRESSED;
 }
@@ -102,37 +110,37 @@ compv2_escape_data_ifneeded (struct buffer *buf)
 void
 comp_uninit(struct compress_context *compctx)
 {
-  if (compctx)
+    if (compctx)
     {
-      (*compctx->alg.compress_uninit)(compctx);
-      free(compctx);
+        (*compctx->alg.compress_uninit)(compctx);
+        free(compctx);
     }
 }
 
 void
 comp_add_to_extra_frame(struct frame *frame)
 {
-  /* Leave room for our one-byte compressed/didn't-compress prefix byte. */
-  frame_add_to_extra_frame (frame, COMP_PREFIX_LEN);
+    /* Leave room for our one-byte compressed/didn't-compress prefix byte. */
+    frame_add_to_extra_frame(frame, COMP_PREFIX_LEN);
 }
 
 void
 comp_add_to_extra_buffer(struct frame *frame)
 {
-  /* Leave room for compression buffer to expand in worst case scenario
-     where data is totally uncompressible */
-  frame_add_to_extra_buffer (frame, COMP_EXTRA_BUFFER (EXPANDED_SIZE(frame)));
+    /* Leave room for compression buffer to expand in worst case scenario
+     * where data is totally uncompressible */
+    frame_add_to_extra_buffer(frame, COMP_EXTRA_BUFFER(EXPANDED_SIZE(frame)));
 }
 
 void
-comp_print_stats (const struct compress_context *compctx, struct status_output *so)
+comp_print_stats(const struct compress_context *compctx, struct status_output *so)
 {
-  if (compctx)
+    if (compctx)
     {
-      status_printf (so, "pre-compress bytes," counter_format, compctx->pre_compress);
-      status_printf (so, "post-compress bytes," counter_format, compctx->post_compress);
-      status_printf (so, "pre-decompress bytes," counter_format, compctx->pre_decompress);
-      status_printf (so, "post-decompress bytes," counter_format, compctx->post_decompress);
+        status_printf(so, "pre-compress bytes," counter_format, compctx->pre_compress);
+        status_printf(so, "post-compress bytes," counter_format, compctx->post_compress);
+        status_printf(so, "pre-decompress bytes," counter_format, compctx->pre_decompress);
+        status_printf(so, "post-decompress bytes," counter_format, compctx->post_decompress);
     }
 }
 
@@ -142,25 +150,27 @@ comp_print_stats (const struct compress_context *compctx, struct status_output *
 void
 comp_generate_peer_info_string(const struct compress_options *opt, struct buffer *out)
 {
-  if (opt)
+    if (opt)
     {
-      bool lzo_avail = false;
-      if (!(opt->flags & COMP_F_ADVERTISE_STUBS_ONLY))
-	{
+        bool lzo_avail = false;
+        if (!(opt->flags & COMP_F_ADVERTISE_STUBS_ONLY))
+        {
 #if defined(ENABLE_LZ4)
-	  buf_printf (out, "IV_LZ4=1\n");
-	  buf_printf (out, "IV_LZ4v2=1\n");
+            buf_printf(out, "IV_LZ4=1\n");
+            buf_printf(out, "IV_LZ4v2=1\n");
 #endif
 #if defined(ENABLE_LZO)
-	  buf_printf (out, "IV_LZO=1\n");
-	  lzo_avail = true;
+            buf_printf(out, "IV_LZO=1\n");
+            lzo_avail = true;
 #endif
-	}
-      if (!lzo_avail)
-	buf_printf (out, "IV_LZO_STUB=1\n");
-      buf_printf (out, "IV_COMP_STUB=1\n");
-      buf_printf (out, "IV_COMP_STUBv2=1\n");
-      buf_printf (out, "IV_TCPNL=1\n");
+        }
+        if (!lzo_avail)
+        {
+            buf_printf(out, "IV_LZO_STUB=1\n");
+        }
+        buf_printf(out, "IV_COMP_STUB=1\n");
+        buf_printf(out, "IV_COMP_STUBv2=1\n");
+        buf_printf(out, "IV_TCPNL=1\n");
     }
 }