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Update RMII ex, enhance MIP

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Sergio R. Caprile committed 2023-02-27 18:30:53 -03:00
1 parent c362af1f81
commit bba361016d
7 files changed
+73 -90
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mongoose.c
+20 -14
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@@ -5672,11 +5672,16 @@ uint16_t mg_ntohs(uint16_t net) {
}
uint32_t mg_crc32(uint32_t crc, const char *buf, size_t len) {
int i;
static const uint32_t crclut[16] = {
// table for polynomial 0xEDB88320 (reflected)
0x00000000, 0x1DB71064, 0x3B6E20C8, 0x26D930AC, 0x76DC4190, 0x6B6B51F4,
0x4DB26158, 0x5005713C, 0xEDB88320, 0xF00F9344, 0xD6D6A3E8, 0xCB61B38C,
0x9B64C2B0, 0x86D3D2D4, 0xA00AE278, 0xBDBDF21C};
crc = ~crc;
while (len--) {
crc ^= *(unsigned char *) buf++;
for (i = 0; i < 8; i++) crc = crc & 1 ? (crc >> 1) ^ 0xedb88320 : crc >> 1;
uint8_t byte = *(uint8_t *)buf++;
crc = crclut[(crc ^ byte) & 0x0F] ^ (crc >> 4);
crc = crclut[(crc ^ (byte >> 4)) & 0x0F] ^ (crc >> 4);
}
return ~crc;
}
@@ -5755,7 +5760,6 @@ uint64_t mg_millis(void) {
}
#endif
#ifdef MG_ENABLE_LINES
#line 1 "src/ws.c"
#endif
@@ -7867,10 +7871,16 @@ static void mg_tcpip_rx(struct mg_tcpip_if *ifp, void *buf, size_t len) {
pkt.raw.len = len;
pkt.eth = (struct eth *) buf;
if (pkt.raw.len < sizeof(*pkt.eth)) return; // Truncated - runt?
if (memcmp(pkt.eth->dst, ifp->mac, sizeof(pkt.eth->dst)) != 0 &&
memcmp(pkt.eth->dst, broadcast, sizeof(pkt.eth->dst)) != 0) {
// Not for us. Drop silently
} else if (pkt.eth->type == mg_htons(0x806)) {
if (ifp->enable_mac_check &&
memcmp(pkt.eth->dst, ifp->mac, sizeof(pkt.eth->dst)) != 0 &&
memcmp(pkt.eth->dst, broadcast, sizeof(pkt.eth->dst)) != 0)
return;
if (ifp->enable_crc32_check && len > 4) {
len -= 4; // TODO(scaprile): check on bigendian
uint32_t crc = mg_crc32(0, (const char *) buf, len);
if (memcmp((void *) ((size_t) buf + len), &crc, sizeof(crc))) return;
}
if (pkt.eth->type == mg_htons(0x806)) {
pkt.arp = (struct arp *) (pkt.eth + 1);
if (sizeof(*pkt.eth) + sizeof(*pkt.arp) > pkt.raw.len) return; // Truncated
rx_arp(ifp, &pkt);
@@ -7971,11 +7981,6 @@ void mg_tcpip_qwrite(void *buf, size_t len, struct mg_tcpip_if *ifp) {
}
}
size_t mg_tcpip_driver_rx(void *buf, size_t len, struct mg_tcpip_if *ifp) {
(void) buf, (void) len, (void) ifp;
return 0;
}
void mg_tcpip_init(struct mg_mgr *mgr, struct mg_tcpip_if *ifp) {
// If MAC address is not set, make a random one
if (ifp->mac[0] == 0 && ifp->mac[1] == 0 && ifp->mac[2] == 0 &&
@@ -7990,7 +7995,8 @@ void mg_tcpip_init(struct mg_mgr *mgr, struct mg_tcpip_if *ifp) {
} else {
size_t framesize = 1540;
ifp->tx.ptr = (char *) calloc(1, framesize), ifp->tx.len = framesize;
ifp->recv_queue.size = ifp->driver->rx ? framesize : 8192;
if (ifp->recv_queue.size == 0)
ifp->recv_queue.size = ifp->driver->rx ? framesize : 8192;
ifp->recv_queue.buf = (char *) calloc(1, ifp->recv_queue.size);
ifp->timer_1000ms = mg_millis();
mgr->priv = ifp;