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-rw-r--r--slirp/if.h25
1 files changed, 19 insertions, 6 deletions
diff --git a/slirp/if.h b/slirp/if.h
index 8f78ce7b69..ea96696b9f 100644
--- a/slirp/if.h
+++ b/slirp/if.h
@@ -13,12 +13,25 @@
#define IF_AUTOCOMP 0x04 /* Autodetect (default) */
#define IF_NOCIDCOMP 0x08 /* CID compression */
-/* Needed for FreeBSD */
-#undef if_mtu
-extern int if_mtu;
-extern int if_mru; /* MTU and MRU */
-extern int if_comp; /* Flags for compression */
-extern int if_maxlinkhdr;
+#define IF_MTU 1500
+#define IF_MRU 1500
+#define IF_COMP IF_AUTOCOMP /* Flags for compression */
+
+#if 0
+/*
+ * Set if_maxlinkhdr to 48 because it's 40 bytes for TCP/IP,
+ * and 8 bytes for PPP, but need to have it on an 8byte boundary
+ */
+#ifdef USE_PPP
+#define IF_MAXLINKHDR 48
+#else
+#define IF_MAXLINKHDR 40
+#endif
+#else
+ /* 2 for alignment, 14 for ethernet, 40 for TCP/IP */
+#define IF_MAXLINKHDR (2 + 14 + 40)
+#endif
+
extern int if_queued; /* Number of packets queued so far */
extern int if_thresh; /* Number of packets queued before we start sending
* (to prevent allocing too many mbufs) */