tmp = ip_route_connect(&rt, nexthop, inet->saddr,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if,
IPPROTO_DCCP,
- inet->sport, usin->sin_port, sk);
+ inet->sport, usin->sin_port, sk, 1);
if (tmp < 0)
return tmp;
goto failure;
err = ip_route_newports(&rt, IPPROTO_DCCP, inet->sport, inet->dport,
- sk);
+ sk);
if (err != 0)
goto failure;
/* We don't check in the destentry if pmtu discovery is forbidden
* on this route. We just assume that no packet_to_big packets
* are send back when pmtu discovery is not active.
- * There is a small race when the user changes this flag in the
+ * There is a small race when the user changes this flag in the
* route, but I think that's acceptable.
*/
if ((dst = __sk_dst_check(sk, 0)) == NULL)
seq = dccp_hdr_seq(skb);
if (sk->sk_state != DCCP_LISTEN &&
!between48(seq, dp->dccps_swl, dp->dccps_swh)) {
- NET_INC_STATS(LINUX_MIB_OUTOFWINDOWICMPS);
+ NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
goto out;
}
sock_put(sk);
}
-static inline u16 dccp_v4_csum_finish(struct sk_buff *skb,
+static inline __sum16 dccp_v4_csum_finish(struct sk_buff *skb,
__be32 src, __be32 dst)
{
return csum_tcpudp_magic(src, dst, skb->len, IPPROTO_DCCP, skb->csum);
.uli_u = { .ports =
{ .sport = dccp_hdr(skb)->dccph_dport,
.dport = dccp_hdr(skb)->dccph_sport }
- }
+ }
};
security_skb_classify_flow(skb, &fl);
struct sk_buff *skb;
/* First, grab a route. */
-
+
if (dst == NULL && (dst = inet_csk_route_req(sk, req)) == NULL)
goto out;
struct inet_request_sock *ireq;
struct request_sock *req;
struct dccp_request_sock *dreq;
- const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
+ const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
if (dccp_bad_service_code(sk, service)) {
reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
goto drop;
- }
+ }
/*
* TW buckets are converted to open requests without
* limitations, they conserve resources and peer is
ireq->rmt_addr = skb->nh.iph->saddr;
ireq->opt = NULL;
- /*
+ /*
* Step 3: Process LISTEN state
*
* Set S.ISR, S.GSR, S.SWL, S.SWH from packet or Init Cookie
/* If the packet is shorter than 12 bytes, drop packet and return */
if (!pskb_may_pull(skb, sizeof(struct dccp_hdr))) {
- LIMIT_NETDEBUG(KERN_WARNING "DCCP: pskb_may_pull failed\n");
+ DCCP_WARN("pskb_may_pull failed\n");
return 1;
}
/* If P.type is not understood, drop packet and return */
if (dh->dccph_type >= DCCP_PKT_INVALID) {
- LIMIT_NETDEBUG(KERN_WARNING "DCCP: invalid packet type\n");
+ DCCP_WARN("invalid packet type\n");
return 1;
}
* If P.Data Offset is too small for packet type, drop packet and return
*/
if (dh->dccph_doff < dccp_hdr_len(skb) / sizeof(u32)) {
- LIMIT_NETDEBUG(KERN_WARNING "DCCP: P.Data Offset(%u) "
- "too small\n", dh->dccph_doff);
+ DCCP_WARN("P.Data Offset(%u) too small\n", dh->dccph_doff);
return 1;
}
/*
* If P.Data Offset is too too large for packet, drop packet and return
*/
if (!pskb_may_pull(skb, dh->dccph_doff * sizeof(u32))) {
- LIMIT_NETDEBUG(KERN_WARNING "DCCP: P.Data Offset(%u) "
- "too large\n", dh->dccph_doff);
+ DCCP_WARN("P.Data Offset(%u) too large\n", dh->dccph_doff);
return 1;
}
*/
if (dh->dccph_type >= DCCP_PKT_DATA &&
dh->dccph_type <= DCCP_PKT_DATAACK && dh->dccph_x == 0) {
- LIMIT_NETDEBUG(KERN_WARNING "DCCP: P.type (%s) not Data||Ack||"
- "DataAck, while P.X == 0\n",
- dccp_packet_name(dh->dccph_type));
+ DCCP_WARN("P.type (%s) not Data || [Data]Ack, while P.X == 0\n",
+ dccp_packet_name(dh->dccph_type));
return 1;
}
*/
cscov = dccp_csum_coverage(skb);
if (cscov > skb->len) {
- LIMIT_NETDEBUG(KERN_WARNING
- "DCCP: P.CsCov %u exceeds packet length %d\n",
- dh->dccph_cscov, skb->len);
+ DCCP_WARN("P.CsCov %u exceeds packet length %d\n",
+ dh->dccph_cscov, skb->len);
return 1;
}
/* Step 1: If header checksum is incorrect, drop packet and return */
if (dccp_v4_csum_finish(skb, skb->nh.iph->saddr, skb->nh.iph->daddr)) {
- LIMIT_NETDEBUG(KERN_WARNING
- "%s: dropped packet with invalid checksum\n",
- __FUNCTION__);
+ DCCP_WARN("dropped packet with invalid checksum\n");
goto discard_it;
}
}
/* Step 2:
- * Look up flow ID in table and get corresponding socket */
+ * Look up flow ID in table and get corresponding socket */
sk = __inet_lookup(&dccp_hashinfo,
skb->nh.iph->saddr, dh->dccph_sport,
skb->nh.iph->daddr, dh->dccph_dport,
inet_iif(skb));
- /*
+ /*
* Step 2:
- * If no socket ...
+ * If no socket ...
*/
if (sk == NULL) {
dccp_pr_debug("failed to look up flow ID in table and "
goto no_dccp_socket;
}
- /*
+ /*
* Step 2:
- * ... or S.state == TIMEWAIT,
+ * ... or S.state == TIMEWAIT,
* Generate Reset(No Connection) unless P.type == Reset
* Drop packet and return
*/
/*
* RFC 4340, sec. 9.2.1: Minimum Checksum Coverage
- * o if MinCsCov = 0, only packets with CsCov = 0 are accepted
- * o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
+ * o if MinCsCov = 0, only packets with CsCov = 0 are accepted
+ * o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
*/
min_cov = dccp_sk(sk)->dccps_pcrlen;
if (dh->dccph_cscov && (min_cov == 0 || dh->dccph_cscov < min_cov)) {
goto discard_and_relse;
nf_reset(skb);
- return sk_receive_skb(sk, skb);
+ return sk_receive_skb(sk, skb, 1);
no_dccp_socket:
if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
goto discard_it;
/*
* Step 2:
- * If no socket ...
+ * If no socket ...
* Generate Reset(No Connection) unless P.type == Reset
* Drop packet and return
*/
projects / linux-drm-fsl-dcu.git / blobdiff