diff options
Diffstat (limited to 'ext/lwip/src/netif')
| -rw-r--r-- | ext/lwip/src/netif/etharp.c | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/ext/lwip/src/netif/etharp.c b/ext/lwip/src/netif/etharp.c index 561fd505..5e382d1d 100644 --- a/ext/lwip/src/netif/etharp.c +++ b/ext/lwip/src/netif/etharp.c @@ -42,7 +42,7 @@ * This file is part of the lwIP TCP/IP stack. * */ - + #include "lwip/opt.h" #if LWIP_ARP || LWIP_ETHERNET @@ -84,7 +84,7 @@ const struct eth_addr ethzero = {{0,0,0,0,0,0}}; /** the time an ARP entry stays pending after first request, * for ARP_TMR_INTERVAL = 5000, this is * (2 * 5) seconds = 10 seconds. - * + * * @internal Keep this number at least 2, otherwise it might * run out instantly if the timeout occurs directly after a request. */ @@ -243,14 +243,14 @@ etharp_tmr(void) /** * Search the ARP table for a matching or new entry. - * + * * If an IP address is given, return a pending or stable ARP entry that matches * the address. If no match is found, create a new entry with this address set, * but in state ETHARP_EMPTY. The caller must check and possibly change the * state of the returned entry. - * + * * If ipaddr is NULL, return a initialized new entry in state ETHARP_EMPTY. - * + * * In all cases, attempt to create new entries from an empty entry. If no * empty entries are available and ETHARP_FLAG_TRY_HARD flag is set, recycle * old entries. Heuristic choose the least important entry for recycling. @@ -258,7 +258,7 @@ etharp_tmr(void) * @param ipaddr IP address to find in ARP cache, or to add if not found. * @param flags @see definition of ETHARP_FLAG_* * @param netif netif related to this address (used for NETIF_HWADDRHINT) - * + * * @return The ARP entry index that matched or is created, ERR_MEM if no * entry is found or could be recycled. */ @@ -337,7 +337,7 @@ etharp_find_entry(ip_addr_t *ipaddr, u8_t flags) } } /* { we have no match } => try to create a new entry */ - + /* don't create new entry, only search? */ if (((flags & ETHARP_FLAG_FIND_ONLY) != 0) || /* or no empty entry found and not allowed to recycle? */ @@ -345,15 +345,15 @@ etharp_find_entry(ip_addr_t *ipaddr, u8_t flags) LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: no empty entry found and not allowed to recycle\n")); return (s8_t)ERR_MEM; } - + /* b) choose the least destructive entry to recycle: * 1) empty entry * 2) oldest stable entry * 3) oldest pending entry without queued packets * 4) oldest pending entry with queued packets - * + * * { ETHARP_FLAG_TRY_HARD is set at this point } - */ + */ /* 1) empty entry available? */ if (empty < ARP_TABLE_SIZE) { @@ -431,7 +431,7 @@ etharp_send_ip(struct netif *netif, struct pbuf *p, struct eth_addr *src, struct * * If a pending entry is resolved, any queued packets will be sent * at this point. - * + * * @param netif netif related to this entry (used for NETIF_ADDRHINT) * @param ipaddr IP address of the inserted ARP entry. * @param ethaddr Ethernet address of the inserted ARP entry. @@ -670,7 +670,7 @@ etharp_ip_input(struct netif *netif, struct pbuf *p) #endif /* ETHARP_TRUST_IP_MAC */ /** - * Responds to ARP requests to us. Upon ARP replies to us, add entry to cache + * Responds to ARP requests to us. Upon ARP replies to us, add entry to cache * send out queued IP packets. Updates cache with snooped address pairs. * * Should be called for incoming ARP packets. The pbuf in the argument @@ -846,13 +846,13 @@ etharp_output_to_arp_index(struct netif *netif, struct pbuf *q, u8_t arp_idx) /* if arp table entry is about to expire: re-request it, but only if its state is ETHARP_STATE_STABLE to prevent flooding the network with ARP requests if this address is used frequently. */ - if ((arp_table[arp_idx].state == ETHARP_STATE_STABLE) && + if ((arp_table[arp_idx].state == ETHARP_STATE_STABLE) && (arp_table[arp_idx].ctime >= ARP_AGE_REREQUEST_USED)) { if (etharp_request(netif, &arp_table[arp_idx].ipaddr) == ERR_OK) { arp_table[arp_idx].state = ETHARP_STATE_STABLE_REREQUESTING; } } - + return etharp_send_ip(netif, q, (struct eth_addr*)(netif->hwaddr), &arp_table[arp_idx].ethaddr); } @@ -990,11 +990,11 @@ etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr) * is sent for the given address. The packet is queued on this entry. * * If the IP address was already stable in the cache, and a packet is - * given, it is directly sent and no ARP request is sent out. - * + * given, it is directly sent and no ARP request is sent out. + * * If the IP address was already stable in the cache, and no packet is * given, an ARP request is sent out. - * + * * @param netif The lwIP network interface on which ipaddr * must be queried for. * @param ipaddr The IP address to be resolved. @@ -1079,7 +1079,7 @@ etharp_query(struct netif *netif, ip_addr_t *ipaddr, struct pbuf *q) struct pbuf *p; int copy_needed = 0; /* IF q includes a PBUF_REF, PBUF_POOL or PBUF_RAM, we have no choice but - * to copy the whole queue into a new PBUF_RAM (see bug #11400) + * to copy the whole queue into a new PBUF_RAM (see bug #11400) * PBUF_ROMs can be left as they are, since ROM must not get changed. */ p = q; while (p) { @@ -1224,7 +1224,7 @@ etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr, #endif /* LWIP_AUTOIP */ ETHADDR16_COPY(ðhdr->src, ethsrc_addr); /* Copy struct ip_addr2 to aligned ip_addr, to support compilers without - * structure packing. */ + * structure packing. */ IPADDR2_COPY(&hdr->sipaddr, ipsrc_addr); IPADDR2_COPY(&hdr->dipaddr, ipdst_addr); @@ -1276,7 +1276,6 @@ etharp_request(struct netif *netif, ip_addr_t *ipaddr) err_t ethernet_input(struct pbuf *p, struct netif *netif) { - printf("------ETHERNET_INPUT()\n"); struct eth_hdr* ethhdr; u16_t type; #if LWIP_ARP || ETHARP_SUPPORT_VLAN @@ -1364,7 +1363,7 @@ ethernet_input(struct pbuf *p, struct netif *netif) ip_input(p, netif); } break; - + case PP_HTONS(ETHTYPE_ARP): if (!(netif->flags & NETIF_FLAG_ETHARP)) { goto free_and_return; |