Commit 9eed2867 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [DCCP]: Update documentation references.
  [ATM] horizon: read_bia() needs to be __devinit
  [NETFILTER]: Fix ip6_tables extension header bypass bug
  [NETFILTER]: Fix ip6_tables protocol bypass bug
  [XFRM]: Fix xfrm_state accounting
  [IPV4] ipconfig: fix RARP ic_servaddr breakage
parents 2099c99e 0e64e94e
......@@ -1789,7 +1789,7 @@ static inline void CLOCK_IT (const hrz_dev *dev, u32 ctrl)
WRITE_IT_WAIT(dev, ctrl | SEEPROM_SK);
}
static u16 __init read_bia (const hrz_dev * dev, u16 addr)
static u16 __devinit read_bia (const hrz_dev * dev, u16 addr)
{
u32 ctrl = rd_regl (dev, CONTROL_0_REG);
......
......@@ -4,15 +4,15 @@ menu "DCCP Configuration (EXPERIMENTAL)"
config IP_DCCP
tristate "The DCCP Protocol (EXPERIMENTAL)"
---help---
Datagram Congestion Control Protocol
Datagram Congestion Control Protocol (RFC 4340)
From draft-ietf-dccp-spec-11 <http://www.icir.org/kohler/dcp/draft-ietf-dccp-spec-11.txt>.
From http://www.ietf.org/rfc/rfc4340.txt:
The Datagram Congestion Control Protocol (DCCP) is a transport
protocol that implements bidirectional, unicast connections of
congestion-controlled, unreliable datagrams. It should be suitable
for use by applications such as streaming media, Internet telephony,
and on-line games
and on-line games.
To compile this protocol support as a module, choose M here: the
module will be called dccp.
......
......@@ -113,7 +113,7 @@ int dccp_insert_option_ackvec(struct sock *sk, struct sk_buff *skb)
memcpy(to, from, len);
/*
* From draft-ietf-dccp-spec-11.txt:
* From RFC 4340, A.2:
*
* For each acknowledgement it sends, the HC-Receiver will add an
* acknowledgement record. ack_seqno will equal the HC-Receiver
......@@ -224,7 +224,7 @@ static inline int dccp_ackvec_set_buf_head_state(struct dccp_ackvec *av,
}
/*
* Implements the draft-ietf-dccp-spec-11.txt Appendix A
* Implements the RFC 4340, Appendix A
*/
int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk,
const u64 ackno, const u8 state)
......@@ -237,7 +237,7 @@ int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk,
* We may well decide to do buffer compression, etc, but for now lets
* just drop.
*
* From Appendix A:
* From Appendix A.1.1 (`New Packets'):
*
* Of course, the circular buffer may overflow, either when the
* HC-Sender is sending data at a very high rate, when the
......@@ -274,9 +274,9 @@ int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk,
/*
* A.1.2. Old Packets
*
* When a packet with Sequence Number S arrives, and
* S <= buf_ackno, the HC-Receiver will scan the table
* for the byte corresponding to S. (Indexing structures
* When a packet with Sequence Number S <= buf_ackno
* arrives, the HC-Receiver will scan the table for
* the byte corresponding to S. (Indexing structures
* could reduce the complexity of this scan.)
*/
u64 delta = dccp_delta_seqno(ackno, av->dccpav_buf_ackno);
......
......@@ -28,8 +28,7 @@
/** struct dccp_ackvec - ack vector
*
* This data structure is the one defined in the DCCP draft
* Appendix A.
* This data structure is the one defined in RFC 4340, Appendix A.
*
* @dccpav_buf_head - circular buffer head
* @dccpav_buf_tail - circular buffer tail
......
......@@ -22,11 +22,11 @@ config IP_DCCP_CCID2
for lost packets, would prefer CCID 2 to CCID 3. On-line games may
also prefer CCID 2.
CCID 2 is further described in:
http://www.icir.org/kohler/dccp/draft-ietf-dccp-ccid2-10.txt
CCID 2 is further described in RFC 4341,
http://www.ietf.org/rfc/rfc4341.txt
This text was extracted from:
http://www.icir.org/kohler/dccp/draft-ietf-dccp-spec-13.txt
This text was extracted from RFC 4340 (sec. 10.1),
http://www.ietf.org/rfc/rfc4340.txt
If in doubt, say M.
......@@ -53,15 +53,14 @@ config IP_DCCP_CCID3
suitable than CCID 2 for applications such streaming media where a
relatively smooth sending rate is of importance.
CCID 3 is further described in:
http://www.icir.org/kohler/dccp/draft-ietf-dccp-ccid3-11.txt.
CCID 3 is further described in RFC 4342,
http://www.ietf.org/rfc/rfc4342.txt
The TFRC congestion control algorithms were initially described in
RFC 3448.
This text was extracted from:
http://www.icir.org/kohler/dccp/draft-ietf-dccp-spec-13.txt
This text was extracted from RFC 4340 (sec. 10.2),
http://www.ietf.org/rfc/rfc4340.txt
If in doubt, say M.
......
......@@ -23,7 +23,7 @@
*/
/*
* This implementation should follow: draft-ietf-dccp-ccid2-10.txt
* This implementation should follow RFC 4341
*
* BUGS:
* - sequence number wrapping
......
......@@ -379,8 +379,7 @@ static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, int len)
packet->dccphtx_seqno = dp->dccps_gss;
/*
* Check if win_count have changed
* Algorithm in "8.1. Window Counter Valuer" in
* draft-ietf-dccp-ccid3-11.txt
* Algorithm in "8.1. Window Counter Value" in RFC 4342.
*/
quarter_rtt = timeval_delta(&now, &hctx->ccid3hctx_t_last_win_count);
if (likely(hctx->ccid3hctx_rtt > 8))
......
......@@ -50,7 +50,7 @@ extern void dccp_time_wait(struct sock *sk, int state, int timeo);
#define DCCP_TIMEWAIT_LEN (60 * HZ) /* how long to wait to destroy TIME-WAIT
* state, about 60 seconds */
/* draft-ietf-dccp-spec-11.txt initial RTO value */
/* RFC 1122, 4.2.3.1 initial RTO value */
#define DCCP_TIMEOUT_INIT ((unsigned)(3 * HZ))
/* Maximal interval between probes for local resources. */
......
......@@ -216,11 +216,11 @@ send_sync:
dccp_send_sync(sk, DCCP_SKB_CB(skb)->dccpd_seq,
DCCP_PKT_SYNCACK);
/*
* From the draft:
* From RFC 4340, sec. 5.7
*
* As with DCCP-Ack packets, DCCP-Sync and DCCP-SyncAck packets
* MAY have non-zero-length application data areas, whose
* contents * receivers MUST ignore.
* contents receivers MUST ignore.
*/
goto discard;
}
......
......@@ -183,7 +183,7 @@ static inline void dccp_do_pmtu_discovery(struct sock *sk,
dccp_sync_mss(sk, mtu);
/*
* From: draft-ietf-dccp-spec-11.txt
* From RFC 4340, sec. 14.1:
*
* DCCP-Sync packets are the best choice for upward
* probing, since DCCP-Sync probes do not risk application
......@@ -733,7 +733,7 @@ static void dccp_v4_ctl_send_reset(struct sk_buff *rxskb)
dccp_hdr_reset(skb)->dccph_reset_code =
DCCP_SKB_CB(rxskb)->dccpd_reset_code;
/* See "8.3.1. Abnormal Termination" in draft-ietf-dccp-spec-11 */
/* See "8.3.1. Abnormal Termination" in RFC 4340 */
seqno = 0;
if (DCCP_SKB_CB(rxskb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
dccp_set_seqno(&seqno, DCCP_SKB_CB(rxskb)->dccpd_ack_seq + 1);
......
......@@ -550,7 +550,7 @@ static void dccp_v6_ctl_send_reset(struct sk_buff *rxskb)
dccp_hdr_reset(skb)->dccph_reset_code =
DCCP_SKB_CB(rxskb)->dccpd_reset_code;
/* See "8.3.1. Abnormal Termination" in draft-ietf-dccp-spec-11 */
/* See "8.3.1. Abnormal Termination" in RFC 4340 */
seqno = 0;
if (DCCP_SKB_CB(rxskb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
dccp_set_seqno(&seqno, DCCP_SKB_CB(rxskb)->dccpd_ack_seq + 1);
......
......@@ -215,7 +215,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
elapsed_time);
break;
/*
* From draft-ietf-dccp-spec-11.txt:
* From RFC 4340, sec. 10.3:
*
* Option numbers 128 through 191 are for
* options sent from the HC-Sender to the
......
......@@ -420,7 +420,7 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
{
struct arphdr *rarp;
unsigned char *rarp_ptr;
unsigned long sip, tip;
u32 sip, tip;
unsigned char *sha, *tha; /* s for "source", t for "target" */
struct ic_device *d;
......
......@@ -111,7 +111,7 @@ ip6_packet_match(const struct sk_buff *skb,
const char *outdev,
const struct ip6t_ip6 *ip6info,
unsigned int *protoff,
int *fragoff)
int *fragoff, int *hotdrop)
{
size_t i;
unsigned long ret;
......@@ -169,9 +169,11 @@ ip6_packet_match(const struct sk_buff *skb,
unsigned short _frag_off;
protohdr = ipv6_find_hdr(skb, protoff, -1, &_frag_off);
if (protohdr < 0)
if (protohdr < 0) {
if (_frag_off == 0)
*hotdrop = 1;
return 0;
}
*fragoff = _frag_off;
dprintf("Packet protocol %hi ?= %s%hi.\n",
......@@ -290,7 +292,7 @@ ip6t_do_table(struct sk_buff **pskb,
IP_NF_ASSERT(e);
IP_NF_ASSERT(back);
if (ip6_packet_match(*pskb, indev, outdev, &e->ipv6,
&protoff, &offset)) {
&protoff, &offset, &hotdrop)) {
struct ip6t_entry_target *t;
if (IP6T_MATCH_ITERATE(e, do_match,
......@@ -1438,6 +1440,9 @@ static void __exit ip6_tables_fini(void)
* If target header is found, its offset is set in *offset and return protocol
* number. Otherwise, return -1.
*
* If the first fragment doesn't contain the final protocol header or
* NEXTHDR_NONE it is considered invalid.
*
* Note that non-1st fragment is special case that "the protocol number
* of last header" is "next header" field in Fragment header. In this case,
* *offset is meaningless and fragment offset is stored in *fragoff if fragoff
......@@ -1461,12 +1466,12 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
if ((!ipv6_ext_hdr(nexthdr)) || nexthdr == NEXTHDR_NONE) {
if (target < 0)
break;
return -1;
return -ENOENT;
}
hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
if (hp == NULL)
return -1;
return -EBADMSG;
if (nexthdr == NEXTHDR_FRAGMENT) {
unsigned short _frag_off, *fp;
fp = skb_header_pointer(skb,
......@@ -1475,7 +1480,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
sizeof(_frag_off),
&_frag_off);
if (fp == NULL)
return -1;
return -EBADMSG;
_frag_off = ntohs(*fp) & ~0x7;
if (_frag_off) {
......@@ -1486,7 +1491,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
*fragoff = _frag_off;
return hp->nexthdr;
}
return -1;
return -ENOENT;
}
hdrlen = 8;
} else if (nexthdr == NEXTHDR_AUTH)
......
......@@ -54,9 +54,14 @@ match(const struct sk_buff *skb,
const struct ip6t_ah *ahinfo = matchinfo;
unsigned int ptr;
unsigned int hdrlen = 0;
int err;
if (ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL) < 0)
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL);
if (err < 0) {
if (err != -ENOENT)
*hotdrop = 1;
return 0;
}
ah = skb_header_pointer(skb, ptr, sizeof(_ah), &_ah);
if (ah == NULL) {
......
......@@ -52,9 +52,14 @@ match(const struct sk_buff *skb,
struct frag_hdr _frag, *fh;
const struct ip6t_frag *fraginfo = matchinfo;
unsigned int ptr;
int err;
if (ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL) < 0)
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL);
if (err < 0) {
if (err != -ENOENT)
*hotdrop = 1;
return 0;
}
fh = skb_header_pointer(skb, ptr, sizeof(_frag), &_frag);
if (fh == NULL) {
......
......@@ -65,9 +65,14 @@ match(const struct sk_buff *skb,
u8 _opttype, *tp = NULL;
u8 _optlen, *lp = NULL;
unsigned int optlen;
int err;
if (ipv6_find_hdr(skb, &ptr, match->data, NULL) < 0)
err = ipv6_find_hdr(skb, &ptr, match->data, NULL);
if (err < 0) {
if (err != -ENOENT)
*hotdrop = 1;
return 0;
}
oh = skb_header_pointer(skb, ptr, sizeof(_optsh), &_optsh);
if (oh == NULL) {
......
......@@ -58,9 +58,14 @@ match(const struct sk_buff *skb,
unsigned int hdrlen = 0;
unsigned int ret = 0;
struct in6_addr *ap, _addr;
int err;
if (ipv6_find_hdr(skb, &ptr, NEXTHDR_ROUTING, NULL) < 0)
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_ROUTING, NULL);
if (err < 0) {
if (err != -ENOENT)
*hotdrop = 1;
return 0;
}
rh = skb_header_pointer(skb, ptr, sizeof(_route), &_route);
if (rh == NULL) {
......
......@@ -505,6 +505,14 @@ __xfrm_state_locate(struct xfrm_state *x, int use_spi, int family)
x->id.proto, family);
}
static void xfrm_hash_grow_check(int have_hash_collision)
{
if (have_hash_collision &&
(xfrm_state_hmask + 1) < xfrm_state_hashmax &&
xfrm_state_num > xfrm_state_hmask)
schedule_work(&xfrm_hash_work);
}
struct xfrm_state *
xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
struct flowi *fl, struct xfrm_tmpl *tmpl,
......@@ -598,6 +606,8 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
x->lft.hard_add_expires_seconds = XFRM_ACQ_EXPIRES;
x->timer.expires = jiffies + XFRM_ACQ_EXPIRES*HZ;
add_timer(&x->timer);
xfrm_state_num++;
xfrm_hash_grow_check(x->bydst.next != NULL);
} else {
x->km.state = XFRM_STATE_DEAD;
xfrm_state_put(x);
......@@ -614,14 +624,6 @@ out:
return x;
}
static void xfrm_hash_grow_check(int have_hash_collision)
{
if (have_hash_collision &&
(xfrm_state_hmask + 1) < xfrm_state_hashmax &&
xfrm_state_num > xfrm_state_hmask)
schedule_work(&xfrm_hash_work);
}
static void __xfrm_state_insert(struct xfrm_state *x)
{
unsigned int h;
......
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