From 642b5fb0007b64c77d186fcb018d571152ee1d47 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Mon, 14 Aug 2023 18:51:07 +0200
Subject: reorganization: first steps
---
src/user/app/netstack/icmp.c | 34 ----------------------------------
1 file changed, 34 deletions(-)
delete mode 100644 src/user/app/netstack/icmp.c
(limited to 'src/user/app/netstack/icmp.c')
diff --git a/src/user/app/netstack/icmp.c b/src/user/app/netstack/icmp.c
deleted file mode 100644
index 0c6a502..0000000
--- a/src/user/app/netstack/icmp.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include "proto.h"
-#include "util.h"
-
-enum {
- Type = 0,
- Code = 1,
- Checksum = 2,
- Payload = 4,
-};
-
-void icmp_parse(const uint8_t *buf, size_t len, struct ipv4 ip) {
- if (len < Payload) return;
- uint8_t type = buf[Type];
- if (type == 8 && ip.dst == state.ip) {
- /* echo reply */
- icmp_send(buf + Payload, len - Payload, (struct icmp){
- .type = 0,
- .ip.dst = ip.src,
- .ip.e.dst = ip.e.src,
- });
- }
-}
-
-void icmp_send(const void *payload, size_t len, struct icmp i) {
- i.ip.proto = 1;
- uint8_t *pkt = malloc(Payload + len);
- pkt[Type] = i.type;
- pkt[Code] = i.code;
- memcpy(pkt + Payload, payload, len);
- nput16(pkt + Checksum, 0);
- nput16(pkt + Checksum, ip_checksum(pkt, Payload + len));
- ipv4_send(pkt, Payload + len, i.ip);
- free(pkt);
-}
--
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