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IPv6. Apparently working. At least I could retrieve a file with http6

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-10-13 01:22:56 +02:00
parent 7c006811f8
commit da1b289afc
11 changed files with 184 additions and 73 deletions
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5
grub-core/net/arp.c
View file

@ -58,6 +58,7 @@ grub_net_arp_send_request (struct grub_net_network_level_interface *inf,
int i;
grub_size_t addrlen;
grub_uint16_t etherpro;
grub_uint8_t *nbd;
if (proto_addr->type == GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4)
{
@ -99,6 +100,7 @@ grub_net_arp_send_request (struct grub_net_network_level_interface *inf,
grub_memcpy (aux, &proto_addr->ipv4, 4);
grub_memset (&target_hw_addr.mac, 0xff, 6);
nbd = nb.data;
send_ethernet_packet (inf, &nb, target_hw_addr, GRUB_NET_ETHERTYPE_ARP);
for (i = 0; i < GRUB_NET_TRIES; i++)
{
@ -107,6 +109,7 @@ grub_net_arp_send_request (struct grub_net_network_level_interface *inf,
grub_net_poll_cards (GRUB_NET_INTERVAL);
if (grub_net_link_layer_resolve_check (inf, proto_addr))
return GRUB_ERR_NONE;
nb.data = nbd;
send_ethernet_packet (inf, &nb, target_hw_addr, GRUB_NET_ETHERTYPE_ARP);
}
@ -142,7 +145,7 @@ grub_net_arp_receive (struct grub_net_buff *nb,
return GRUB_ERR_NONE;
sender_hw_addr.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
grub_memcpy (sender_hw_addr.mac, &sender_hardware_address,
grub_memcpy (sender_hw_addr.mac, sender_hardware_address,
sizeof (sender_hw_addr.mac));
grub_net_link_layer_add_address (card, &sender_addr, &sender_hw_addr, 1);

2
grub-core/net/bootp.c
View file

@ -493,7 +493,7 @@ grub_cmd_bootp (struct grub_command *cmd __attribute__ ((unused)),
&ifaces[j].address,
&target);
err = grub_net_send_ip_packet (&ifaces[j], &target, nb,
err = grub_net_send_ip_packet (&ifaces[j], &target, NULL, nb,
GRUB_NET_IP_UDP);
grub_netbuff_free (nb);
if (err)

4
grub-core/net/icmp.c
View file

@ -106,7 +106,9 @@ grub_net_recv_icmp_packet (struct grub_net_buff *nb,
icmphr->checksum = 0;
icmphr->checksum = grub_net_ip_chksum ((void *) nb_reply->data,
nb_reply->tail - nb_reply->data);
err = grub_net_send_ip_packet (inf, src, nb_reply, GRUB_NET_IP_ICMP);
/* FIXME: gateway pings. */
err = grub_net_send_ip_packet (inf, src, NULL,
nb_reply, GRUB_NET_IP_ICMP);
ping_fail:
grub_netbuff_free (nb);

31
grub-core/net/icmp6.c
View file

@ -182,7 +182,8 @@ grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
GRUB_NET_IP_ICMPV6,
&inf->address,
source);
err = grub_net_send_ip_packet (inf, source, nb_reply,
/* FIXME: gateway pings. */
err = grub_net_send_ip_packet (inf, source, NULL, nb_reply,
GRUB_NET_IP_ICMPV6);
ping_fail:
@ -288,7 +289,7 @@ grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
GRUB_NET_IP_ICMPV6,
&inf->address,
source);
err = grub_net_send_ip_packet (inf, source, nb_reply,
err = grub_net_send_ip_packet (inf, source, NULL, nb_reply,
GRUB_NET_IP_ICMPV6);
ndp_fail:
@ -384,12 +385,19 @@ grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
for (slaac = card->slaac_list; slaac; slaac = slaac->next)
{
grub_net_network_level_address_t addr;
grub_net_network_level_netaddress_t netaddr;
if (slaac->address.type
!= GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET)
continue;
addr.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
addr.ipv6[0] = opt->prefix[0];
addr.ipv6[1] = grub_net_ipv6_get_id (&slaac->address);
netaddr.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
netaddr.ipv6.base[0] = opt->prefix[0];
netaddr.ipv6.base[1] = 0;
netaddr.ipv6.masksize = 64;
FOR_NET_NETWORK_LEVEL_INTERFACES (inf)
{
if (inf->card == card
@ -408,9 +416,10 @@ grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
+ sizeof (":XXXXXXXXXXXXXXXXXXXX")];
grub_snprintf (name, sizeof (name), "%s:%d",
slaac->name, slaac->slaac_counter++);
grub_net_add_addr (name,
card, &addr,
&slaac->address, 0);
inf = grub_net_add_addr (name,
card, &addr,
&slaac->address, 0);
grub_net_add_route (name, netaddr, inf);
}
}
}
@ -435,7 +444,7 @@ grub_net_icmp6_send_request (struct grub_net_network_level_interface *inf,
struct neighbour_solicit *sol;
struct icmp_header *icmphr;
grub_net_network_level_address_t multicast;
grub_uint8_t *nbd;
multicast.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
multicast.ipv6[0] = grub_be_to_cpu64_compile_time (0xff02ULL << 48);
multicast.ipv6[1] = (grub_be_to_cpu64_compile_time (0x01ff000000ULL)
@ -467,7 +476,7 @@ grub_net_icmp6_send_request (struct grub_net_network_level_interface *inf,
goto fail;
ohdr = (struct option_header *) nb->data;
ohdr->type = OPTION_TARGET_LINK_LAYER_ADDRESS;
ohdr->type = OPTION_SOURCE_LINK_LAYER_ADDRESS;
ohdr->len = 1;
err = grub_netbuff_push (nb, sizeof (*sol));
if (err)
@ -482,14 +491,15 @@ grub_net_icmp6_send_request (struct grub_net_network_level_interface *inf,
goto fail;
icmphr = (struct icmp_header *) nb->data;
icmphr->type = ICMP6_NEIGHBOUR_ADVERTISE;
icmphr->type = ICMP6_NEIGHBOUR_SOLICIT;
icmphr->code = 0;
icmphr->checksum = 0;
icmphr->checksum = grub_net_ip_transport_checksum (nb,
GRUB_NET_IP_ICMPV6,
&inf->address,
&multicast);
err = grub_net_send_ip_packet (inf, &multicast, nb,
nbd = nb->data;
err = grub_net_send_ip_packet (inf, &multicast, NULL, nb,
GRUB_NET_IP_ICMPV6);
if (err)
goto fail;
@ -501,7 +511,8 @@ grub_net_icmp6_send_request (struct grub_net_network_level_interface *inf,
grub_net_poll_cards (GRUB_NET_INTERVAL);
if (grub_net_link_layer_resolve_check (inf, proto_addr))
break;
err = grub_net_send_ip_packet (inf, &multicast, nb,
nb->data = nbd;
err = grub_net_send_ip_packet (inf, &multicast, NULL, nb,
GRUB_NET_IP_ICMPV6);
if (err)
break;

29
grub-core/net/ip.c
View file

@ -181,9 +181,10 @@ send_fragmented (struct grub_net_network_level_interface * inf,
}
static grub_err_t
grub_net_send_ip4_packet (struct grub_net_network_level_interface * inf,
const grub_net_network_level_address_t * target,
struct grub_net_buff * nb,
grub_net_send_ip4_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
const grub_net_network_level_address_t *gw,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto)
{
struct iphdr *iph;
@ -193,7 +194,7 @@ grub_net_send_ip4_packet (struct grub_net_network_level_interface * inf,
COMPILE_TIME_ASSERT (GRUB_NET_OUR_IPV4_HEADER_SIZE == sizeof (*iph));
/* Determine link layer target address via ARP. */
err = grub_net_link_layer_resolve (inf, target, &ll_target_addr);
err = grub_net_link_layer_resolve (inf, gw ? : target, &ll_target_addr);
if (err)
return err;
@ -578,9 +579,10 @@ grub_net_recv_ip4_packets (struct grub_net_buff * nb,
}
static grub_err_t
grub_net_send_ip6_packet (struct grub_net_network_level_interface * inf,
const grub_net_network_level_address_t * target,
struct grub_net_buff * nb,
grub_net_send_ip6_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
const grub_net_network_level_address_t *gw,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto)
{
struct ip6hdr *iph;
@ -590,7 +592,7 @@ grub_net_send_ip6_packet (struct grub_net_network_level_interface * inf,
COMPILE_TIME_ASSERT (GRUB_NET_OUR_IPV6_HEADER_SIZE == sizeof (*iph));
/* Determine link layer target address via ARP. */
err = grub_net_link_layer_resolve (inf, target, &ll_target_addr);
err = grub_net_link_layer_resolve (inf, gw ? : target, &ll_target_addr);
if (err)
return err;
@ -612,17 +614,18 @@ grub_net_send_ip6_packet (struct grub_net_network_level_interface * inf,
}
grub_err_t
grub_net_send_ip_packet (struct grub_net_network_level_interface * inf,
const grub_net_network_level_address_t * target,
struct grub_net_buff * nb,
grub_net_send_ip_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
const grub_net_network_level_address_t *gw,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto)
{
switch (target->type)
{
case GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4:
return grub_net_send_ip4_packet (inf, target, nb, proto);
return grub_net_send_ip4_packet (inf, target, gw, nb, proto);
case GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6:
return grub_net_send_ip6_packet (inf, target, nb, proto);
return grub_net_send_ip6_packet (inf, target, gw, nb, proto);
default:
return grub_error (GRUB_ERR_BAD_ARGUMENT, "not an IP");
}

117
grub-core/net/net.c
View file

@ -160,8 +160,6 @@ grub_net_link_layer_resolve (struct grub_net_network_level_interface *inf,
return GRUB_ERR_NONE;
}
/* Check cache table. */
entry = link_layer_find_entry (proto_addr, inf->card);
if (entry)
@ -378,18 +376,23 @@ static int
parse_ip (const char *val, grub_uint32_t *ip, const char **rest)
{
grub_uint32_t newip = 0;
unsigned long t;
int i;
const char *ptr = val;
for (i = 0; i < 4; i++)
{
unsigned long t;
t = grub_strtoul (ptr, (char **) &ptr, 0);
if (grub_errno)
{
grub_errno = GRUB_ERR_NONE;
return 0;
}
if (*ptr != '.' && i == 0)
{
newip = t;
break;
}
if (t & ~0xff)
return 0;
newip >>= 8;
@ -400,7 +403,56 @@ parse_ip (const char *val, grub_uint32_t *ip, const char **rest)
}
*ip = grub_cpu_to_le32 (newip);
if (rest)
*rest = ptr - 1;
*rest = (ptr - 1);
return 1;
}
static int
parse_ip6 (const char *val, grub_uint64_t *ip, const char **rest)
{
grub_uint16_t newip[8];
const char *ptr = val;
int word, quaddot = -1;
if (ptr[0] == ':' && ptr[1] != ':')
return 0;
if (ptr[0] == ':')
ptr++;
for (word = 0; word < 8; word++)
{
unsigned long t;
if (*ptr == ':')
{
quaddot = word;
word--;
ptr++;
continue;
}
t = grub_strtoul (ptr, (char **) &ptr, 16);
if (grub_errno)
{
grub_errno = GRUB_ERR_NONE;
break;
}
if (t & ~0xffff)
return 0;
newip[word] = grub_cpu_to_be16 (t);
if (*ptr != ':')
break;
ptr++;
}
if (quaddot == -1 && word < 7)
return 0;
if (quaddot != -1)
{
grub_memmove (&newip[quaddot + 7 - word], &newip[quaddot],
(word - quaddot + 1) * sizeof (newip[0]));
grub_memset (&newip[quaddot], 0, (7 - word) * sizeof (newip[0]));
}
grub_memcpy (ip, newip, 16);
if (rest)
*rest = ptr;
return 1;
}
@ -422,16 +474,21 @@ match_net (const grub_net_network_level_netaddress_t *net,
}
case GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6:
{
grub_int64_t mask[2];
mask[1] = 0xffffffffffffffffULL << (128 - net->ipv6.masksize);
if (net->ipv6.masksize < 64)
mask[0] = 0xffffffffffffffffULL;
grub_uint64_t mask[2];
if (net->ipv6.masksize <= 64)
{
mask[0] = 0xffffffffffffffffULL << (64 - net->ipv6.masksize);
mask[1] = 0;
}
else
mask[0] = 0xffffffffffffffffULL << (64 - net->ipv6.masksize);
{
mask[0] = 0xffffffffffffffffULL;
mask[1] = 0xffffffffffffffffULL << (128 - net->ipv6.masksize);
}
return (((grub_be_to_cpu64 (net->ipv6.base[0]) & mask[0])
== (grub_be_to_cpu32 (addr->ipv6[0]) & mask[0]))
== (grub_be_to_cpu64 (addr->ipv6[0]) & mask[0]))
&& ((grub_be_to_cpu64 (net->ipv6.base[1]) & mask[1])
== (grub_be_to_cpu32 (addr->ipv6[1]) & mask[1])));
== (grub_be_to_cpu64 (addr->ipv6[1]) & mask[1])));
}
}
return 0;
@ -441,11 +498,17 @@ grub_err_t
grub_net_resolve_address (const char *name,
grub_net_network_level_address_t *addr)
{
if (parse_ip (name, &addr->ipv4, NULL))
const char *rest;
if (parse_ip (name, &addr->ipv4, &rest) && *rest == 0)
{
addr->type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
return GRUB_ERR_NONE;
}
if (parse_ip6 (name, addr->ipv6, &rest) && *rest == 0)
{
addr->type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
return GRUB_ERR_NONE;
}
return grub_error (GRUB_ERR_NET_BAD_ADDRESS, N_("unrecognised address %s"),
name);
}
@ -460,12 +523,32 @@ grub_net_resolve_net_address (const char *name,
addr->type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
if (*rest == '/')
{
addr->ipv4.masksize = grub_strtoul (rest + 1, NULL, 0);
if (!grub_errno)
return GRUB_ERR_NONE;
addr->ipv4.masksize = grub_strtoul (rest + 1, (char **) &rest, 0);
if (!grub_errno && *rest == 0)
return GRUB_ERR_NONE;
grub_errno = GRUB_ERR_NONE;
}
else if (*rest == 0)
{
addr->ipv4.masksize = 32;
return GRUB_ERR_NONE;
}
}
if (parse_ip6 (name, addr->ipv6.base, &rest))
{
addr->type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
if (*rest == '/')
{
addr->ipv6.masksize = grub_strtoul (rest + 1, (char **) &rest, 0);
if (!grub_errno && *rest == 0)
return GRUB_ERR_NONE;
grub_errno = GRUB_ERR_NONE;
}
else if (*rest == 0)
{
addr->ipv6.masksize = 128;
return GRUB_ERR_NONE;
}
addr->ipv4.masksize = 32;
return GRUB_ERR_NONE;
}
return grub_error (GRUB_ERR_NET_BAD_ADDRESS, N_("unrecognised address %s"),
name);

40
grub-core/net/tcp.c
View file

@ -69,7 +69,7 @@ struct grub_net_tcp_socket
void *recv);
void (*error_hook) (grub_net_tcp_socket_t sock, void *recv);
void *hook_data;
grub_net_network_level_address_t out_nla;
grub_net_network_level_address_t out_nla, gw;
struct grub_net_network_level_interface *inf;
grub_net_packets_t packs;
grub_priority_queue_t pq;
@ -216,8 +216,8 @@ tcp_send (struct grub_net_buff *nb, grub_net_tcp_socket_t socket)
socket->unack_last->next = unack;
}
err = grub_net_send_ip_packet (socket->inf, &(socket->out_nla), nb,
GRUB_NET_IP_TCP);
err = grub_net_send_ip_packet (socket->inf, &(socket->out_nla),
&(socket->gw),nb, GRUB_NET_IP_TCP);
if (err)
return err;
nb->data = nbd;
@ -240,11 +240,11 @@ grub_net_tcp_close (grub_net_tcp_socket_t sock,
sock->recv_hook = NULL;
nb_fin = grub_netbuff_alloc (sizeof (*tcph_fin)
+ GRUB_NET_OUR_IPV4_HEADER_SIZE
+ GRUB_NET_OUR_MAX_IP_HEADER_SIZE
+ GRUB_NET_MAX_LINK_HEADER_SIZE);
if (!nb_fin)
return;
err = grub_netbuff_reserve (nb_fin, GRUB_NET_OUR_IPV4_HEADER_SIZE
err = grub_netbuff_reserve (nb_fin, GRUB_NET_OUR_MAX_IP_HEADER_SIZE
+ GRUB_NET_MAX_LINK_HEADER_SIZE);
if (err)
{
@ -368,7 +368,8 @@ grub_net_tcp_retransmit (void)
unack->try_count++;
unack->last_try = ctime;
nbd = unack->nb->data;
err = grub_net_send_ip_packet (sock->inf, &(sock->out_nla), unack->nb,
err = grub_net_send_ip_packet (sock->inf, &(sock->out_nla),
&(sock->gw), unack->nb,
GRUB_NET_IP_TCP);
unack->nb->data = nbd;
if (err)
@ -468,11 +469,11 @@ grub_net_tcp_accept (grub_net_tcp_socket_t sock,
sock->error_hook = error_hook;
sock->hook_data = hook_data;
nb_ack = grub_netbuff_alloc (sizeof (*tcph)
+ GRUB_NET_OUR_IPV4_HEADER_SIZE
+ GRUB_NET_OUR_MAX_IP_HEADER_SIZE
+ GRUB_NET_MAX_LINK_HEADER_SIZE);
if (!nb_ack)
return grub_errno;
err = grub_netbuff_reserve (nb_ack, GRUB_NET_OUR_IPV4_HEADER_SIZE
err = grub_netbuff_reserve (nb_ack, GRUB_NET_OUR_MAX_IP_HEADER_SIZE
+ GRUB_NET_MAX_LINK_HEADER_SIZE);
if (err)
{
@ -525,9 +526,10 @@ grub_net_tcp_open (char *server,
if (err)
return NULL;
if (addr.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4)
if (addr.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4
&& addr.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "not a IPv4 address");
grub_error (GRUB_ERR_BAD_ARGUMENT, "not an IP address");
return NULL;
}
@ -542,6 +544,7 @@ grub_net_tcp_open (char *server,
socket->out_port = out_port;
socket->inf = inf;
socket->out_nla = addr;
socket->gw = gateway;
socket->in_port = in_port++;
socket->recv_hook = recv_hook;
socket->error_hook = error_hook;
@ -593,7 +596,8 @@ grub_net_tcp_open (char *server,
{
int j;
nb->data = nbd;
err = grub_net_send_ip_packet (socket->inf, &(socket->out_nla), nb,
err = grub_net_send_ip_packet (socket->inf, &(socket->out_nla),
&(socket->gw), nb,
GRUB_NET_IP_TCP);
if (err)
{
@ -636,20 +640,23 @@ grub_net_send_tcp_packet (const grub_net_tcp_socket_t socket,
grub_err_t err;
grub_ssize_t fraglen;
COMPILE_TIME_ASSERT (sizeof (struct tcphdr) == GRUB_NET_TCP_HEADER_SIZE);
fraglen = (socket->inf->card->mtu - GRUB_NET_OUR_IPV4_HEADER_SIZE
- sizeof (*tcph));
if (socket->out_nla.type == GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4)
fraglen = (socket->inf->card->mtu - GRUB_NET_OUR_IPV4_HEADER_SIZE
- sizeof (*tcph));
else
fraglen = 1280 - GRUB_NET_OUR_IPV6_HEADER_SIZE;
while (nb->tail - nb->data > fraglen)
{
struct grub_net_buff *nb2;
nb2 = grub_netbuff_alloc (fraglen + sizeof (*tcph)
+ GRUB_NET_OUR_IPV4_HEADER_SIZE
+ GRUB_NET_OUR_MAX_IP_HEADER_SIZE
+ GRUB_NET_MAX_LINK_HEADER_SIZE);
if (!nb2)
return grub_errno;
err = grub_netbuff_reserve (nb2, GRUB_NET_MAX_LINK_HEADER_SIZE
+ GRUB_NET_OUR_IPV4_HEADER_SIZE);
+ GRUB_NET_OUR_MAX_IP_HEADER_SIZE);
if (err)
return err;
err = grub_netbuff_put (nb2, sizeof (*tcph));
@ -724,8 +731,7 @@ grub_net_recv_tcp_packet (struct grub_net_buff *nb,
if (!(grub_be_to_cpu16 (tcph->dst) == sock->in_port
&& grub_be_to_cpu16 (tcph->src) == sock->out_port
&& inf == sock->inf
&& source->type == GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4
&& source->ipv4 == sock->out_nla.ipv4))
&& grub_net_addr_cmp (source, &sock->out_nla) == 0))
continue;
if (tcph->checksum)
{

15
grub-core/net/udp.c
View file

@ -34,7 +34,7 @@ struct grub_net_udp_socket
grub_err_t (*recv_hook) (grub_net_udp_socket_t sock, struct grub_net_buff *nb,
void *recv);
void *recv_hook_data;
grub_net_network_level_address_t out_nla;
grub_net_network_level_address_t out_nla, gw;
struct grub_net_network_level_interface *inf;
};
@ -76,9 +76,10 @@ grub_net_udp_open (char *server,
if (err)
return NULL;
if (addr.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4)
if (addr.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4
&& addr.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "not a IPv4 address");
grub_error (GRUB_ERR_BAD_ARGUMENT, "not an IP address");
return NULL;
}
@ -93,6 +94,7 @@ grub_net_udp_open (char *server,
socket->out_port = out_port;
socket->inf = inf;
socket->out_nla = addr;
socket->gw = gateway;
socket->in_port = in_port++;
socket->status = GRUB_NET_SOCKET_START;
socket->recv_hook = recv_hook;
@ -127,8 +129,8 @@ grub_net_send_udp_packet (const grub_net_udp_socket_t socket,
&socket->inf->address,
&socket->out_nla);
return grub_net_send_ip_packet (socket->inf, &(socket->out_nla), nb,
GRUB_NET_IP_UDP);
return grub_net_send_ip_packet (socket->inf, &(socket->out_nla),
&(socket->gw), nb, GRUB_NET_IP_UDP);
}
grub_err_t
@ -160,8 +162,7 @@ grub_net_recv_udp_packet (struct grub_net_buff *nb,
{
if (grub_be_to_cpu16 (udph->dst) == sock->in_port
&& inf == sock->inf
&& source->type == GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4
&& source->ipv4 == sock->out_nla.ipv4
&& grub_net_addr_cmp (source, &sock->out_nla) == 0
&& (sock->status == GRUB_NET_SOCKET_START
|| grub_be_to_cpu16 (udph->src) == sock->out_port))
{

1
include/grub/net.h
View file

@ -34,6 +34,7 @@ enum
GRUB_NET_TCP_HEADER_SIZE = 20,
GRUB_NET_OUR_IPV4_HEADER_SIZE = 20,
GRUB_NET_OUR_IPV6_HEADER_SIZE = 40,
GRUB_NET_OUR_MAX_IP_HEADER_SIZE = 40,
GRUB_NET_TCP_RESERVE_SIZE = GRUB_NET_TCP_HEADER_SIZE
+ GRUB_NET_OUR_IPV4_HEADER_SIZE
+ GRUB_NET_MAX_LINK_HEADER_SIZE

1
include/grub/net/ip.h
View file

@ -52,6 +52,7 @@ grub_net_recv_ip_packets (struct grub_net_buff *nb,
grub_err_t
grub_net_send_ip_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
const grub_net_network_level_address_t *gw,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto);

12
include/grub/net/netbuff.h
View file

@ -18,13 +18,13 @@ struct grub_net_buff
grub_uint8_t *end;
};
grub_err_t grub_netbuff_put (struct grub_net_buff *net_buff ,grub_size_t len);
grub_err_t grub_netbuff_unput (struct grub_net_buff *net_buff ,grub_size_t len);
grub_err_t grub_netbuff_push (struct grub_net_buff *net_buff ,grub_size_t len);
grub_err_t grub_netbuff_pull (struct grub_net_buff *net_buff ,grub_size_t len);
grub_err_t grub_netbuff_reserve (struct grub_net_buff *net_buff ,grub_size_t len);
grub_err_t grub_netbuff_put (struct grub_net_buff *net_buff, grub_size_t len);
grub_err_t grub_netbuff_unput (struct grub_net_buff *net_buff, grub_size_t len);
grub_err_t grub_netbuff_push (struct grub_net_buff *net_buff, grub_size_t len);
grub_err_t grub_netbuff_pull (struct grub_net_buff *net_buff, grub_size_t len);
grub_err_t grub_netbuff_reserve (struct grub_net_buff *net_buff, grub_size_t len);
grub_err_t grub_netbuff_clear (struct grub_net_buff *net_buff);
struct grub_net_buff * grub_netbuff_alloc ( grub_size_t len );
struct grub_net_buff * grub_netbuff_alloc (grub_size_t len);
grub_err_t grub_netbuff_free (struct grub_net_buff *net_buff);
#endif