I did not combine 2,3,4/8 on purpose, as I think these are already big
review chunks. You may fold them if you like.
===
commit ff79dac82b9f23e72eebae20e59ad9fa940a442a
Author: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
Date: Sat Mar 8 15:16:53 2008 +0100
[NETFILTER]: Use bool type in struct nf_conntrack_l4proto
Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
---
include/net/netfilter/nf_conntrack_l4proto.h | 13 ++--
net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 25 ++++----
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 27 ++++----
net/netfilter/nf_conntrack_proto_dccp.c | 22 +++---
net/netfilter/nf_conntrack_proto_generic.c | 20 +++---
net/netfilter/nf_conntrack_proto_gre.c | 25 ++++----
net/netfilter/nf_conntrack_proto_sctp.c | 33 +++++-----
net/netfilter/nf_conntrack_proto_tcp.c | 52 ++++++++--------
net/netfilter/nf_conntrack_proto_udp.c | 21 +++---
net/netfilter/nf_conntrack_proto_udplite.c | 22 +++---
10 files changed, 126 insertions(+), 134 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index efc16ec..12c5ecf 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -25,15 +25,14 @@ struct nf_conntrack_l4proto
/* Try to fill in the third arg: dataoff is offset past network protocol
hdr. Return true if possible. */
- int (*pkt_to_tuple)(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple);
+ bool (*pkt_to_tuple)(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple);
/* Invert the per-proto part of the tuple: ie. turn xmit into reply.
* Some packets can't be inverted: return 0 in that case.
*/
- int (*invert_tuple)(struct nf_conntrack_tuple *inverse,
- const struct nf_conntrack_tuple *orig);
+ bool (*invert_tuple)(struct nf_conntrack_tuple *inverse,
+ const struct nf_conntrack_tuple *orig);
/* Returns verdict for packet, or -1 for invalid. */
int (*packet)(struct nf_conn *ct,
@@ -45,8 +44,8 @@ struct nf_conntrack_l4proto
/* Called when a new connection for this protocol found;
* returns TRUE if it's OK. If so, packet() called next. */
- int (*new)(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff);
+ bool (*new)(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff);
/* Called when a conntrack entry is destroyed */
void (*destroy)(struct nf_conn *ct);
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 6873fdd..420302e 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -22,22 +22,21 @@
static unsigned long nf_ct_icmp_timeout __read_mostly = 30*HZ;
-static int icmp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool icmp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
const struct icmphdr *hp;
struct icmphdr _hdr;
hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (hp == NULL)
- return 0;
+ return false;
tuple->dst.u.icmp.type = hp->type;
tuple->src.u.icmp.id = hp->un.echo.id;
tuple->dst.u.icmp.code = hp->code;
- return 1;
+ return true;
}
/* Add 1; spaces filled with 0. */
@@ -52,17 +51,17 @@ static const u_int8_t invmap[] = {
[ICMP_ADDRESSREPLY] = ICMP_ADDRESS + 1
};
-static int icmp_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool icmp_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
if (orig->dst.u.icmp.type >= sizeof(invmap)
|| !invmap[orig->dst.u.icmp.type])
- return 0;
+ return false;
tuple->src.u.icmp.id = orig->src.u.icmp.id;
tuple->dst.u.icmp.type = invmap[orig->dst.u.icmp.type] - 1;
tuple->dst.u.icmp.code = orig->dst.u.icmp.code;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -101,8 +100,8 @@ static int icmp_packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int icmp_new(struct nf_conn *ct,
- const struct sk_buff *skb, unsigned int dataoff)
+static bool icmp_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
static const u_int8_t valid_new[] = {
[ICMP_ECHO] = 1,
@@ -117,10 +116,10 @@ static int icmp_new(struct nf_conn *ct,
pr_debug("icmp: can't create new conn with type %u\n",
ct->tuplehash[0].tuple.dst.u.icmp.type);
NF_CT_DUMP_TUPLE(&ct->tuplehash[0].tuple);
- return 0;
+ return false;
}
atomic_set(&ct->proto.icmp.count, 0);
- return 1;
+ return true;
}
/* Returns conntrack if it dealt with ICMP, and filled in skb fields */
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 0897d0f..fdb4a72 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -28,21 +28,21 @@
static unsigned long nf_ct_icmpv6_timeout __read_mostly = 30*HZ;
-static int icmpv6_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool
+icmpv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
const struct icmp6hdr *hp;
struct icmp6hdr _hdr;
hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (hp == NULL)
- return 0;
+ return false;
tuple->dst.u.icmp.type = hp->icmp6_type;
tuple->src.u.icmp.id = hp->icmp6_identifier;
tuple->dst.u.icmp.code = hp->icmp6_code;
- return 1;
+ return true;
}
/* Add 1; spaces filled with 0. */
@@ -53,17 +53,17 @@ static const u_int8_t invmap[] = {
[ICMPV6_NI_REPLY - 128] = ICMPV6_NI_REPLY +1
};
-static int icmpv6_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool icmpv6_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
int type = orig->dst.u.icmp.type - 128;
if (type < 0 || type >= sizeof(invmap) || !invmap[type])
- return 0;
+ return false;
tuple->src.u.icmp.id = orig->src.u.icmp.id;
tuple->dst.u.icmp.type = invmap[type] - 1;
tuple->dst.u.icmp.code = orig->dst.u.icmp.code;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -102,9 +102,8 @@ static int icmpv6_packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int icmpv6_new(struct nf_conn *ct,
- const struct sk_buff *skb,
- unsigned int dataoff)
+static bool icmpv6_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
static const u_int8_t valid_new[] = {
[ICMPV6_ECHO_REQUEST - 128] = 1,
@@ -117,10 +116,10 @@ static int icmpv6_new(struct nf_conn *ct,
pr_debug("icmpv6: can't create new conn with type %u\n",
type + 128);
NF_CT_DUMP_TUPLE(&ct->tuplehash[0].tuple);
- return 0;
+ return false;
}
atomic_set(&ct->proto.icmp.count, 0);
- return 1;
+ return true;
}
static int
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 57d62b4..5cde3e2 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -371,30 +371,30 @@ static u_int8_t dccp_state_table[IP_CT_DIR_MAX][DCCP_PKT_SYNCACK + 1][CT_DCCP_MA
},
};
-static int dccp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool dccp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
struct dccp_hdr _hdr, *dh;
dh = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (dh == NULL)
- return 0;
+ return false;
tuple->src.u.dccp.port = dh->dccph_sport;
tuple->dst.u.dccp.port = dh->dccph_dport;
- return 1;
+ return true;
}
-static int dccp_invert_tuple(struct nf_conntrack_tuple *inv,
- const struct nf_conntrack_tuple *tuple)
+static bool dccp_invert_tuple(struct nf_conntrack_tuple *inv,
+ const struct nf_conntrack_tuple *tuple)
{
inv->src.u.dccp.port = tuple->dst.u.dccp.port;
inv->dst.u.dccp.port = tuple->src.u.dccp.port;
- return 1;
+ return true;
}
-static int dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff)
+static bool dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
int pf = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
struct dccp_hdr _dh, *dh;
@@ -419,12 +419,12 @@ static int dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
}
ct->proto.dccp.state = CT_DCCP_NONE;
- return 1;
+ return true;
out_invalid:
if (LOG_INVALID(IPPROTO_DCCP))
nf_log_packet(pf, 0, skb, NULL, NULL, NULL, msg);
- return 0;
+ return false;
}
static u64 dccp_ack_seq(const struct dccp_hdr *dh)
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index 5545891..f2e2a89 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -14,23 +14,23 @@
static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
-static int generic_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool
+generic_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
tuple->src.u.all = 0;
tuple->dst.u.all = 0;
- return 1;
+ return true;
}
-static int generic_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool generic_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
tuple->src.u.all = 0;
tuple->dst.u.all = 0;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -53,10 +53,10 @@ static int packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int new(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff)
+static bool new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
- return 1;
+ return true;
}
#ifdef CONFIG_SYSCTL
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index e10024a..05ba8a9 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -148,18 +148,17 @@ EXPORT_SYMBOL_GPL(nf_ct_gre_keymap_destroy);
/* PUBLIC CONNTRACK PROTO HELPER FUNCTIONS */
/* invert gre part of tuple */
-static int gre_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool gre_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
tuple->dst.u.gre.key = orig->src.u.gre.key;
tuple->src.u.gre.key = orig->dst.u.gre.key;
- return 1;
+ return true;
}
/* gre hdr info to tuple */
-static int gre_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool gre_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
const struct gre_hdr_pptp *pgrehdr;
struct gre_hdr_pptp _pgrehdr;
@@ -173,24 +172,24 @@ static int gre_pkt_to_tuple(const struct sk_buff *skb,
/* try to behave like "nf_conntrack_proto_generic" */
tuple->src.u.all = 0;
tuple->dst.u.all = 0;
- return 1;
+ return true;
}
/* PPTP header is variable length, only need up to the call_id field */
pgrehdr = skb_header_pointer(skb, dataoff, 8, &_pgrehdr);
if (!pgrehdr)
- return 1;
+ return true;
if (ntohs(grehdr->protocol) != GRE_PROTOCOL_PPTP) {
pr_debug("GRE_VERSION_PPTP but unknown proto\n");
- return 0;
+ return false;
}
tuple->dst.u.gre.key = pgrehdr->call_id;
srckey = gre_keymap_lookup(tuple);
tuple->src.u.gre.key = srckey;
- return 1;
+ return true;
}
/* print gre part of tuple */
@@ -235,8 +234,8 @@ static int gre_packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int gre_new(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff)
+static bool gre_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
pr_debug(": ");
NF_CT_DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
@@ -246,7 +245,7 @@ static int gre_new(struct nf_conn *ct, const struct sk_buff *skb,
ct->proto.gre.stream_timeout = GRE_STREAM_TIMEOUT;
ct->proto.gre.timeout = GRE_TIMEOUT;
- return 1;
+ return true;
}
/* Called when a conntrack entry has already been removed from the hashes
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index f9a0837..5f56a01 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -130,28 +130,27 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
}
};
-static int sctp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool sctp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
sctp_sctphdr_t _hdr, *hp;
/* Actually only need first 8 bytes. */
hp = skb_header_pointer(skb, dataoff, 8, &_hdr);
if (hp == NULL)
- return 0;
+ return false;
tuple->src.u.sctp.port = hp->source;
tuple->dst.u.sctp.port = hp->dest;
- return 1;
+ return true;
}
-static int sctp_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool sctp_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
tuple->src.u.sctp.port = orig->dst.u.sctp.port;
tuple->dst.u.sctp.port = orig->src.u.sctp.port;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -390,8 +389,8 @@ out:
}
/* Called when a new connection for this protocol found. */
-static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff)
+static bool sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
enum sctp_conntrack new_state;
sctp_sctphdr_t _sctph, *sh;
@@ -401,16 +400,16 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
sh = skb_header_pointer(skb, dataoff, sizeof(_sctph), &_sctph);
if (sh == NULL)
- return 0;
+ return false;
if (do_basic_checks(ct, skb, dataoff, map) != 0)
- return 0;
+ return false;
/* If an OOTB packet has any of these chunks discard (Sec 8.4) */
if (test_bit(SCTP_CID_ABORT, map) ||
test_bit(SCTP_CID_SHUTDOWN_COMPLETE, map) ||
test_bit(SCTP_CID_COOKIE_ACK, map))
- return 0;
+ return false;
new_state = SCTP_CONNTRACK_MAX;
for_each_sctp_chunk (skb, sch, _sch, offset, dataoff, count) {
@@ -422,7 +421,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
if (new_state == SCTP_CONNTRACK_NONE ||
new_state == SCTP_CONNTRACK_MAX) {
pr_debug("nf_conntrack_sctp: invalid new deleting.\n");
- return 0;
+ return false;
}
/* Copy the vtag into the state info */
@@ -433,7 +432,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
sizeof(_inithdr), &_inithdr);
if (ih == NULL)
- return 0;
+ return false;
pr_debug("Setting vtag %x for new conn\n",
ih->init_tag);
@@ -442,7 +441,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
ih->init_tag;
} else {
/* Sec 8.5.1 (A) */
- return 0;
+ return false;
}
}
/* If it is a shutdown ack OOTB packet, we expect a return
@@ -456,7 +455,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
ct->proto.sctp.state = new_state;
}
- return 1;
+ return true;
}
#ifdef CONFIG_SYSCTL
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 6256795..d6dd594 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -257,9 +257,8 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
}
};
-static int tcp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool tcp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
const struct tcphdr *hp;
struct tcphdr _hdr;
@@ -267,20 +266,20 @@ static int tcp_pkt_to_tuple(const struct sk_buff *skb,
/* Actually only need first 8 bytes. */
hp = skb_header_pointer(skb, dataoff, 8, &_hdr);
if (hp == NULL)
- return 0;
+ return false;
tuple->src.u.tcp.port = hp->source;
tuple->dst.u.tcp.port = hp->dest;
- return 1;
+ return true;
}
-static int tcp_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool tcp_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
tuple->src.u.tcp.port = orig->dst.u.tcp.port;
tuple->dst.u.tcp.port = orig->src.u.tcp.port;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -478,20 +477,20 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff,
}
}
-static int tcp_in_window(const struct nf_conn *ct,
- struct ip_ct_tcp *state,
- enum ip_conntrack_dir dir,
- unsigned int index,
- const struct sk_buff *skb,
- unsigned int dataoff,
- const struct tcphdr *tcph,
- int pf)
+static bool tcp_in_window(const struct nf_conn *ct,
+ struct ip_ct_tcp *state,
+ enum ip_conntrack_dir dir,
+ unsigned int index,
+ const struct sk_buff *skb,
+ unsigned int dataoff,
+ const struct tcphdr *tcph,
+ int pf)
{
struct ip_ct_tcp_state *sender = &state->seen[dir];
struct ip_ct_tcp_state *receiver = &state->seen[!dir];
const struct nf_conntrack_tuple *tuple = &ct->tuplehash[dir].tuple;
__u32 seq, ack, sack, end, win, swin;
- int res;
+ bool res;
/*
* Get the required data from the packet.
@@ -657,12 +656,12 @@ static int tcp_in_window(const struct nf_conn *ct,
state->retrans = 0;
}
}
- res = 1;
+ res = true;
} else {
- res = 0;
+ res = false;
if (sender->flags & IP_CT_TCP_FLAG_BE_LIBERAL ||
nf_ct_tcp_be_liberal)
- res = 1;
+ res = true;
if (!res && LOG_INVALID(IPPROTO_TCP))
nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
"nf_ct_tcp: %s ",
@@ -676,7 +675,7 @@ static int tcp_in_window(const struct nf_conn *ct,
: "SEQ is over the upper bound (over the window of the receiver)");
}
- pr_debug("tcp_in_window: res=%i sender end=%u maxend=%u maxwin=%u "
+ pr_debug("tcp_in_window: res=%u sender end=%u maxend=%u maxwin=%u "
"receiver end=%u maxend=%u maxwin=%u\n",
res, sender->td_end, sender->td_maxend, sender->td_maxwin,
receiver->td_end, receiver->td_maxend, receiver->td_maxwin);
@@ -982,9 +981,8 @@ static int tcp_packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int tcp_new(struct nf_conn *ct,
- const struct sk_buff *skb,
- unsigned int dataoff)
+static bool tcp_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
enum tcp_conntrack new_state;
const struct tcphdr *th;
@@ -1003,7 +1001,7 @@ static int tcp_new(struct nf_conn *ct,
/* Invalid: delete conntrack */
if (new_state >= TCP_CONNTRACK_MAX) {
pr_debug("nf_ct_tcp: invalid new deleting.\n");
- return 0;
+ return false;
}
if (new_state == TCP_CONNTRACK_SYN_SENT) {
@@ -1021,7 +1019,7 @@ static int tcp_new(struct nf_conn *ct,
ct->proto.tcp.seen[1].flags = 0;
} else if (nf_ct_tcp_loose == 0) {
/* Don't try to pick up connections. */
- return 0;
+ return false;
} else {
/*
* We are in the middle of a connection,
@@ -1061,7 +1059,7 @@ static int tcp_new(struct nf_conn *ct,
sender->td_scale,
receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
receiver->td_scale);
- return 1;
+ return true;
}
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index b8a35cc..501e771 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -26,9 +26,8 @@
static unsigned int nf_ct_udp_timeout __read_mostly = 30*HZ;
static unsigned int nf_ct_udp_timeout_stream __read_mostly = 180*HZ;
-static int udp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool udp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
const struct udphdr *hp;
struct udphdr _hdr;
@@ -36,20 +35,20 @@ static int udp_pkt_to_tuple(const struct sk_buff *skb,
/* Actually only need first 8 bytes. */
hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (hp == NULL)
- return 0;
+ return false;
tuple->src.u.udp.port = hp->source;
tuple->dst.u.udp.port = hp->dest;
- return 1;
+ return true;
}
-static int udp_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool udp_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
tuple->src.u.udp.port = orig->dst.u.udp.port;
tuple->dst.u.udp.port = orig->src.u.udp.port;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -83,10 +82,10 @@ static int udp_packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int udp_new(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff)
+static bool udp_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
- return 1;
+ return true;
}
static int udp_error(struct sk_buff *skb, unsigned int dataoff,
diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c
index c3eaee6..d0b40e3 100644
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -27,28 +27,28 @@
static unsigned int nf_ct_udplite_timeout __read_mostly = 30*HZ;
static unsigned int nf_ct_udplite_timeout_stream __read_mostly = 180*HZ;
-static int udplite_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct nf_conntrack_tuple *tuple)
+static bool
+udplite_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+ struct nf_conntrack_tuple *tuple)
{
const struct udphdr *hp;
struct udphdr _hdr;
hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (hp == NULL)
- return 0;
+ return false;
tuple->src.u.udp.port = hp->source;
tuple->dst.u.udp.port = hp->dest;
- return 1;
+ return true;
}
-static int udplite_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+static bool udplite_invert_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
tuple->src.u.udp.port = orig->dst.u.udp.port;
tuple->dst.u.udp.port = orig->src.u.udp.port;
- return 1;
+ return true;
}
/* Print out the per-protocol part of the tuple. */
@@ -83,10 +83,10 @@ static int udplite_packet(struct nf_conn *ct,
}
/* Called when a new connection for this protocol found. */
-static int udplite_new(struct nf_conn *ct, const struct sk_buff *skb,
- unsigned int dataoff)
+static bool udplite_new(struct nf_conn *ct, const struct sk_buff *skb,
+ unsigned int dataoff)
{
- return 1;
+ return true;
}
static int udplite_error(struct sk_buff *skb, unsigned int dataoff,
--
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