aboutsummaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
Diffstat (limited to 'net')
-rw-r--r--net/atm/lec.c29
-rw-r--r--net/ieee80211/ieee80211_rx.c43
-rw-r--r--net/ipv4/tcp_input.c65
-rw-r--r--net/ipv4/tcp_output.c3
-rw-r--r--net/xfrm/xfrm_user.c2
5 files changed, 100 insertions, 42 deletions
diff --git a/net/atm/lec.c b/net/atm/lec.c
index a2efa7ff41f1..3235c57615e4 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -266,7 +266,6 @@ static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
char buf[300];
int i = 0;
#endif /* DUMP_PACKETS >0 */
- DECLARE_MAC_BUF(mac);
pr_debug("lec_start_xmit called\n");
if (!priv->lecd) {
@@ -374,15 +373,19 @@ static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (entry && (entry->tx_wait.qlen < LEC_UNRES_QUE_LEN)) {
pr_debug("%s:lec_start_xmit: queuing packet, ",
dev->name);
- pr_debug("MAC address %s\n",
- print_mac(mac, lec_h->h_dest));
+ pr_debug("MAC address " MAC_FMT "\n",
+ lec_h->h_dest[0], lec_h->h_dest[1],
+ lec_h->h_dest[2], lec_h->h_dest[3],
+ lec_h->h_dest[4], lec_h->h_dest[5]);
skb_queue_tail(&entry->tx_wait, skb);
} else {
pr_debug
("%s:lec_start_xmit: tx queue full or no arp entry, dropping, ",
dev->name);
- pr_debug("MAC address %s\n",
- print_mac(mac, lec_h->h_dest));
+ pr_debug("MAC address " MAC_FMT "\n",
+ lec_h->h_dest[0], lec_h->h_dest[1],
+ lec_h->h_dest[2], lec_h->h_dest[3],
+ lec_h->h_dest[4], lec_h->h_dest[5]);
priv->stats.tx_dropped++;
dev_kfree_skb(skb);
}
@@ -394,8 +397,10 @@ static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
while (entry && (skb2 = skb_dequeue(&entry->tx_wait))) {
pr_debug("lec.c: emptying tx queue, ");
- pr_debug("MAC address %s\n",
- print_mac(mac, lec_h->h_dest));
+ pr_debug("MAC address " MAC_FMT "\n",
+ lec_h->h_dest[0], lec_h->h_dest[1],
+ lec_h->h_dest[2], lec_h->h_dest[3],
+ lec_h->h_dest[4], lec_h->h_dest[5]);
lec_send(vcc, skb2, priv);
}
@@ -449,7 +454,6 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
struct lec_arp_table *entry;
int i;
char *tmp; /* FIXME */
- DECLARE_MAC_BUF(mac);
atomic_sub(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
mesg = (struct atmlec_msg *)skb->data;
@@ -536,9 +540,14 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
struct net_bridge_fdb_entry *f;
pr_debug
- ("%s: bridge zeppelin asks about %s\n",
+ ("%s: bridge zeppelin asks about " MAC_FMT "\n",
dev->name,
- print_mac(mac, mesg->content.proxy.mac_addr));
+ mesg->content.proxy.mac_addr[0],
+ mesg->content.proxy.mac_addr[1],
+ mesg->content.proxy.mac_addr[2],
+ mesg->content.proxy.mac_addr[3],
+ mesg->content.proxy.mac_addr[4],
+ mesg->content.proxy.mac_addr[5]);
if (br_fdb_get_hook == NULL || dev->br_port == NULL)
break;
diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c
index 1e3f87c8c012..200ee1e63728 100644
--- a/net/ieee80211/ieee80211_rx.c
+++ b/net/ieee80211/ieee80211_rx.c
@@ -271,7 +271,6 @@ ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
{
struct ieee80211_hdr_3addr *hdr;
int res, hdrlen;
- DECLARE_MAC_BUF(mac);
if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL)
return 0;
@@ -283,8 +282,12 @@ ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv);
atomic_dec(&crypt->refcnt);
if (res < 0) {
- IEEE80211_DEBUG_DROP("decryption failed (SA=%s"
- ") res=%d\n", print_mac(mac, hdr->addr2), res);
+ IEEE80211_DEBUG_DROP("decryption failed (SA=" MAC_FMT
+ ") res=%d\n",
+ hdr->addr2[0], hdr->addr2[1],
+ hdr->addr2[2], hdr->addr2[3],
+ hdr->addr2[4], hdr->addr2[5],
+ res);
if (res == -2)
IEEE80211_DEBUG_DROP("Decryption failed ICV "
"mismatch (key %d)\n",
@@ -304,7 +307,6 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee,
{
struct ieee80211_hdr_3addr *hdr;
int res, hdrlen;
- DECLARE_MAC_BUF(mac);
if (crypt == NULL || crypt->ops->decrypt_msdu == NULL)
return 0;
@@ -317,8 +319,12 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee,
atomic_dec(&crypt->refcnt);
if (res < 0) {
printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed"
- " (SA=%s keyidx=%d)\n",
- ieee->dev->name, print_mac(mac, hdr->addr2), keyidx);
+ " (SA=" MAC_FMT " keyidx=%d)\n",
+ ieee->dev->name,
+ hdr->addr2[0], hdr->addr2[1],
+ hdr->addr2[2], hdr->addr2[3],
+ hdr->addr2[4], hdr->addr2[5],
+ keyidx);
return -1;
}
@@ -462,8 +468,10 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
* frames silently instead of filling system log with
* these reports. */
IEEE80211_DEBUG_DROP("Decryption failed (not set)"
- " (SA=%s)\n",
- print_mac(mac, hdr->addr2));
+ " (SA=" MAC_FMT ")\n",
+ hdr->addr2[0], hdr->addr2[1],
+ hdr->addr2[2], hdr->addr2[3],
+ hdr->addr2[4], hdr->addr2[5]);
ieee->ieee_stats.rx_discards_undecryptable++;
goto rx_dropped;
}
@@ -474,8 +482,10 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
fc & IEEE80211_FCTL_PROTECTED && ieee->host_decrypt &&
(keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) {
printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth "
- "from %s\n", dev->name,
- print_mac(mac, hdr->addr2));
+ "from " MAC_FMT "\n", dev->name,
+ hdr->addr2[0], hdr->addr2[1],
+ hdr->addr2[2], hdr->addr2[3],
+ hdr->addr2[4], hdr->addr2[5]);
/* TODO: could inform hostapd about this so that it
* could send auth failure report */
goto rx_dropped;
@@ -653,8 +663,11 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
* configured */
} else {
IEEE80211_DEBUG_DROP("encryption configured, but RX "
- "frame not encrypted (SA=%s"
- ")\n", print_mac(mac, hdr->addr2));
+ "frame not encrypted (SA="
+ MAC_FMT ")\n",
+ hdr->addr2[0], hdr->addr2[1],
+ hdr->addr2[2], hdr->addr2[3],
+ hdr->addr2[4], hdr->addr2[5]);
goto rx_dropped;
}
}
@@ -662,9 +675,11 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep &&
!ieee80211_is_eapol_frame(ieee, skb)) {
IEEE80211_DEBUG_DROP("dropped unencrypted RX data "
- "frame from %s"
+ "frame from " MAC_FMT
" (drop_unencrypted=1)\n",
- print_mac(mac, hdr->addr2));
+ hdr->addr2[0], hdr->addr2[1],
+ hdr->addr2[2], hdr->addr2[3],
+ hdr->addr2[4], hdr->addr2[5]);
goto rx_dropped;
}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 7facdb0f6960..5119856017ab 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1625,13 +1625,11 @@ out:
return flag;
}
-/* If we receive more dupacks than we expected counting segments
- * in assumption of absent reordering, interpret this as reordering.
- * The only another reason could be bug in receiver TCP.
+/* Limits sacked_out so that sum with lost_out isn't ever larger than
+ * packets_out. Returns zero if sacked_out adjustement wasn't necessary.
*/
-static void tcp_check_reno_reordering(struct sock *sk, const int addend)
+int tcp_limit_reno_sacked(struct tcp_sock *tp)
{
- struct tcp_sock *tp = tcp_sk(sk);
u32 holes;
holes = max(tp->lost_out, 1U);
@@ -1639,8 +1637,20 @@ static void tcp_check_reno_reordering(struct sock *sk, const int addend)
if ((tp->sacked_out + holes) > tp->packets_out) {
tp->sacked_out = tp->packets_out - holes;
- tcp_update_reordering(sk, tp->packets_out + addend, 0);
+ return 1;
}
+ return 0;
+}
+
+/* If we receive more dupacks than we expected counting segments
+ * in assumption of absent reordering, interpret this as reordering.
+ * The only another reason could be bug in receiver TCP.
+ */
+static void tcp_check_reno_reordering(struct sock *sk, const int addend)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ if (tcp_limit_reno_sacked(tp))
+ tcp_update_reordering(sk, tp->packets_out + addend, 0);
}
/* Emulate SACKs for SACKless connection: account for a new dupack. */
@@ -1681,11 +1691,16 @@ static inline void tcp_reset_reno_sack(struct tcp_sock *tp)
int tcp_use_frto(struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
+ const struct inet_connection_sock *icsk = inet_csk(sk);
struct sk_buff *skb;
if (!sysctl_tcp_frto)
return 0;
+ /* MTU probe and F-RTO won't really play nicely along currently */
+ if (icsk->icsk_mtup.probe_size)
+ return 0;
+
if (IsSackFrto())
return 1;
@@ -2134,11 +2149,13 @@ static void tcp_verify_retransmit_hint(struct tcp_sock *tp, struct sk_buff *skb)
/* Mark head of queue up as lost. With RFC3517 SACK, the packets is
* is against sacked "cnt", otherwise it's against facked "cnt"
*/
-static void tcp_mark_head_lost(struct sock *sk, int packets, int fast_rexmit)
+static void tcp_mark_head_lost(struct sock *sk, int packets)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
- int cnt;
+ int cnt, oldcnt;
+ int err;
+ unsigned int mss;
BUG_TRAP(packets <= tp->packets_out);
if (tp->lost_skb_hint) {
@@ -2157,13 +2174,25 @@ static void tcp_mark_head_lost(struct sock *sk, int packets, int fast_rexmit)
tp->lost_skb_hint = skb;
tp->lost_cnt_hint = cnt;
+ if (after(TCP_SKB_CB(skb)->end_seq, tp->high_seq))
+ break;
+
+ oldcnt = cnt;
if (tcp_is_fack(tp) || tcp_is_reno(tp) ||
(TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED))
cnt += tcp_skb_pcount(skb);
- if (((!fast_rexmit || (tp->lost_out > 0)) && (cnt > packets)) ||
- after(TCP_SKB_CB(skb)->end_seq, tp->high_seq))
- break;
+ if (cnt > packets) {
+ if (tcp_is_sack(tp) || (oldcnt >= packets))
+ break;
+
+ mss = skb_shinfo(skb)->gso_size;
+ err = tcp_fragment(sk, skb, (packets - oldcnt) * mss, mss);
+ if (err < 0)
+ break;
+ cnt = packets;
+ }
+
if (!(TCP_SKB_CB(skb)->sacked & (TCPCB_SACKED_ACKED|TCPCB_LOST))) {
TCP_SKB_CB(skb)->sacked |= TCPCB_LOST;
tp->lost_out += tcp_skb_pcount(skb);
@@ -2180,17 +2209,17 @@ static void tcp_update_scoreboard(struct sock *sk, int fast_rexmit)
struct tcp_sock *tp = tcp_sk(sk);
if (tcp_is_reno(tp)) {
- tcp_mark_head_lost(sk, 1, fast_rexmit);
+ tcp_mark_head_lost(sk, 1);
} else if (tcp_is_fack(tp)) {
int lost = tp->fackets_out - tp->reordering;
if (lost <= 0)
lost = 1;
- tcp_mark_head_lost(sk, lost, fast_rexmit);
+ tcp_mark_head_lost(sk, lost);
} else {
int sacked_upto = tp->sacked_out - tp->reordering;
- if (sacked_upto < 0)
- sacked_upto = 0;
- tcp_mark_head_lost(sk, sacked_upto, fast_rexmit);
+ if (sacked_upto < fast_rexmit)
+ sacked_upto = fast_rexmit;
+ tcp_mark_head_lost(sk, sacked_upto);
}
/* New heuristics: it is possible only after we switched
@@ -2524,7 +2553,7 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked, int flag)
before(tp->snd_una, tp->high_seq) &&
icsk->icsk_ca_state != TCP_CA_Open &&
tp->fackets_out > tp->reordering) {
- tcp_mark_head_lost(sk, tp->fackets_out - tp->reordering, 0);
+ tcp_mark_head_lost(sk, tp->fackets_out - tp->reordering);
NET_INC_STATS_BH(LINUX_MIB_TCPLOSS);
}
@@ -2586,6 +2615,8 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked, int flag)
case TCP_CA_Loss:
if (flag & FLAG_DATA_ACKED)
icsk->icsk_retransmits = 0;
+ if (tcp_is_reno(tp) && flag & FLAG_SND_UNA_ADVANCED)
+ tcp_reset_reno_sack(tp);
if (!tcp_try_undo_loss(sk)) {
tcp_moderate_cwnd(tp);
tcp_xmit_retransmit_queue(sk);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 72b9350006fe..d29ef79c00ca 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1808,6 +1808,9 @@ void tcp_simple_retransmit(struct sock *sk)
if (!lost)
return;
+ if (tcp_is_reno(tp))
+ tcp_limit_reno_sacked(tp);
+
tcp_verify_left_out(tp);
/* Don't muck with the congestion window here.
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 5d96f2728dc6..019d21de19b3 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -288,7 +288,7 @@ static void copy_from_user_state(struct xfrm_state *x, struct xfrm_usersa_info *
memcpy(&x->props.saddr, &p->saddr, sizeof(x->props.saddr));
x->props.flags = p->flags;
- if (x->props.mode == XFRM_MODE_TRANSPORT)
+ if (!x->sel.family)
x->sel.family = p->family;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.