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Commit 3cd30a1b authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
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o icmp: cleanups, use C99 array init style, etc

parent 1a569433
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Showing with 64 additions and 82 deletions
net/ipv4/icmp.c
View file @ 3cd30a1b
...@@ -120,68 +120,68 @@ DEFINE_SNMP_STAT(struct icmp_mib, icmp_statistics); ...@@ -120,68 +120,68 @@ DEFINE_SNMP_STAT(struct icmp_mib, icmp_statistics);
struct icmp_err icmp_err_convert[] = { struct icmp_err icmp_err_convert[] = {
{ {
.errno =ENETUNREACH, /* ICMP_NET_UNREACH */ .errno = ENETUNREACH, /* ICMP_NET_UNREACH */
.fatal =0, .fatal = 0,
}, },
{ {
.errno =EHOSTUNREACH, /* ICMP_HOST_UNREACH */ .errno = EHOSTUNREACH, /* ICMP_HOST_UNREACH */
.fatal =0, .fatal = 0,
}, },
{ {
.errno =ENOPROTOOPT /* ICMP_PROT_UNREACH */, .errno = ENOPROTOOPT /* ICMP_PROT_UNREACH */,
.fatal =1, .fatal = 1,
}, },
{ {
.errno =ECONNREFUSED, /* ICMP_PORT_UNREACH */ .errno = ECONNREFUSED, /* ICMP_PORT_UNREACH */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =EMSGSIZE, /* ICMP_FRAG_NEEDED */ .errno = EMSGSIZE, /* ICMP_FRAG_NEEDED */
.fatal =0, .fatal = 0,
}, },
{ {
.errno =EOPNOTSUPP, /* ICMP_SR_FAILED */ .errno = EOPNOTSUPP, /* ICMP_SR_FAILED */
.fatal =0, .fatal = 0,
}, },
{ {
.errno =ENETUNREACH, /* ICMP_NET_UNKNOWN */ .errno = ENETUNREACH, /* ICMP_NET_UNKNOWN */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =EHOSTDOWN, /* ICMP_HOST_UNKNOWN */ .errno = EHOSTDOWN, /* ICMP_HOST_UNKNOWN */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =ENONET, /* ICMP_HOST_ISOLATED */ .errno = ENONET, /* ICMP_HOST_ISOLATED */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =ENETUNREACH, /* ICMP_NET_ANO */ .errno = ENETUNREACH, /* ICMP_NET_ANO */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =EHOSTUNREACH, /* ICMP_HOST_ANO */ .errno = EHOSTUNREACH, /* ICMP_HOST_ANO */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =ENETUNREACH, /* ICMP_NET_UNR_TOS */ .errno = ENETUNREACH, /* ICMP_NET_UNR_TOS */
.fatal =0, .fatal = 0,
}, },
{ {
.errno =EHOSTUNREACH, /* ICMP_HOST_UNR_TOS */ .errno = EHOSTUNREACH, /* ICMP_HOST_UNR_TOS */
.fatal =0, .fatal = 0,
}, },
{ {
.errno =EHOSTUNREACH, /* ICMP_PKT_FILTERED */ .errno = EHOSTUNREACH, /* ICMP_PKT_FILTERED */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =EHOSTUNREACH, /* ICMP_PREC_VIOLATION */ .errno = EHOSTUNREACH, /* ICMP_PREC_VIOLATION */
.fatal =1, .fatal = 1,
}, },
{ {
.errno =EHOSTUNREACH, /* ICMP_PREC_CUTOFF */ .errno = EHOSTUNREACH, /* ICMP_PREC_CUTOFF */
.fatal =1, .fatal = 1,
}, },
}; };
...@@ -320,8 +320,8 @@ static void icmp_out_count(int type) ...@@ -320,8 +320,8 @@ static void icmp_out_count(int type)
* Checksum each fragment, and on the first include the headers and final * Checksum each fragment, and on the first include the headers and final
* checksum. * checksum.
*/ */
int int icmp_glue_bits(void *from, char *to, int offset, int len, int odd,
icmp_glue_bits(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb) struct sk_buff *skb)
{ {
struct icmp_bxm *icmp_param = (struct icmp_bxm *)from; struct icmp_bxm *icmp_param = (struct icmp_bxm *)from;
unsigned int csum; unsigned int csum;
...@@ -334,8 +334,8 @@ icmp_glue_bits(void *from, char *to, int offset, int len, int odd, struct sk_buf ...@@ -334,8 +334,8 @@ icmp_glue_bits(void *from, char *to, int offset, int len, int odd, struct sk_buf
return 0; return 0;
} }
static void static void icmp_push_reply(struct icmp_bxm *icmp_param,
icmp_push_reply(struct icmp_bxm *icmp_param, struct ipcm_cookie *ipc, struct rtable *rt) struct ipcm_cookie *ipc, struct rtable *rt)
{ {
struct sk_buff *skb; struct sk_buff *skb;
...@@ -353,8 +353,8 @@ icmp_push_reply(struct icmp_bxm *icmp_param, struct ipcm_cookie *ipc, struct rta ...@@ -353,8 +353,8 @@ icmp_push_reply(struct icmp_bxm *icmp_param, struct ipcm_cookie *ipc, struct rta
csum = csum_add(csum, skb1->csum); csum = csum_add(csum, skb1->csum);
} }
csum = csum_partial_copy_nocheck((void *)&icmp_param->data, csum = csum_partial_copy_nocheck((void *)&icmp_param->data,
(char*)icmph, icmp_param->head_len, (char *)icmph,
csum); icmp_param->head_len, csum);
icmph->checksum = csum_fold(csum); icmph->checksum = csum_fold(csum);
skb->ip_summed = CHECKSUM_NONE; skb->ip_summed = CHECKSUM_NONE;
ip_push_pending_frames(icmp_socket->sk); ip_push_pending_frames(icmp_socket->sk);
...@@ -728,20 +728,16 @@ static void icmp_redirect(struct sk_buff *skb) ...@@ -728,20 +728,16 @@ static void icmp_redirect(struct sk_buff *skb)
ip = iph->daddr; ip = iph->daddr;
switch (skb->h.icmph->code & 7) { switch (skb->h.icmph->code & 7) {
case ICMP_REDIR_NET: case ICMP_REDIR_NET:
case ICMP_REDIR_NETTOS: case ICMP_REDIR_NETTOS:
/* /*
* As per RFC recommendations now handle it as * As per RFC recommendations now handle it as a host redirect.
* a host redirect. */
*/ case ICMP_REDIR_HOST:
case ICMP_REDIR_HOST: case ICMP_REDIR_HOSTTOS:
case ICMP_REDIR_HOSTTOS: ip_rt_redirect(skb->nh.iph->saddr, ip, skb->h.icmph->un.gateway,
ip_rt_redirect(skb->nh.iph->saddr, iph->saddr, iph->tos, skb->dev);
ip, skb->h.icmph->un.gateway, break;
iph->saddr, iph->tos, skb->dev);
break;
default:
break;
} }
out: out:
return; return;
...@@ -966,7 +962,7 @@ int icmp_rcv(struct sk_buff *skb) ...@@ -966,7 +962,7 @@ int icmp_rcv(struct sk_buff *skb)
} }
ICMP_INC_STATS_BH_FIELD(icmp_pointers[icmph->type].input_off); ICMP_INC_STATS_BH_FIELD(icmp_pointers[icmph->type].input_off);
(icmp_pointers[icmph->type].handler)(skb); icmp_pointers[icmph->type].handler(skb);
drop: drop:
kfree_skb(skb); kfree_skb(skb);
...@@ -980,8 +976,7 @@ int icmp_rcv(struct sk_buff *skb) ...@@ -980,8 +976,7 @@ int icmp_rcv(struct sk_buff *skb)
* This table is the definition of how we handle ICMP. * This table is the definition of how we handle ICMP.
*/ */
static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = {
/* ECHO REPLY (0) */ [ICMP_ECHOREPLY] = {
[0] = {
.output_off = offsetof(struct icmp_mib, IcmpOutEchoReps), .output_off = offsetof(struct icmp_mib, IcmpOutEchoReps),
.input_off = offsetof(struct icmp_mib, IcmpInEchoReps), .input_off = offsetof(struct icmp_mib, IcmpInEchoReps),
.handler = icmp_discard, .handler = icmp_discard,
...@@ -998,22 +993,19 @@ static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { ...@@ -998,22 +993,19 @@ static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = {
.handler = icmp_discard, .handler = icmp_discard,
.error = 1, .error = 1,
}, },
/* DEST UNREACH (3) */ [ICMP_DEST_UNREACH] = {
[3] = {
.output_off = offsetof(struct icmp_mib, IcmpOutDestUnreachs), .output_off = offsetof(struct icmp_mib, IcmpOutDestUnreachs),
.input_off = offsetof(struct icmp_mib, IcmpInDestUnreachs), .input_off = offsetof(struct icmp_mib, IcmpInDestUnreachs),
.handler = icmp_unreach, .handler = icmp_unreach,
.error = 1, .error = 1,
}, },
/* SOURCE QUENCH (4) */ [ICMP_SOURCE_QUENCH] = {
[4] = {
.output_off = offsetof(struct icmp_mib, IcmpOutSrcQuenchs), .output_off = offsetof(struct icmp_mib, IcmpOutSrcQuenchs),
.input_off = offsetof(struct icmp_mib, IcmpInSrcQuenchs), .input_off = offsetof(struct icmp_mib, IcmpInSrcQuenchs),
icmp_unreach, .handler = icmp_unreach,
.error = 1, .error = 1,
}, },
/* REDIRECT (5) */ [ICMP_REDIRECT] = {
[5] = {
.output_off = offsetof(struct icmp_mib, IcmpOutRedirects), .output_off = offsetof(struct icmp_mib, IcmpOutRedirects),
.input_off = offsetof(struct icmp_mib, IcmpInRedirects), .input_off = offsetof(struct icmp_mib, IcmpInRedirects),
.handler = icmp_redirect, .handler = icmp_redirect,
...@@ -1031,12 +1023,10 @@ static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { ...@@ -1031,12 +1023,10 @@ static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = {
.handler = icmp_discard, .handler = icmp_discard,
.error = 1, .error = 1,
}, },
/* ECHO (8) */ [ICMP_ECHO] = {
[8] = {
.output_off = offsetof(struct icmp_mib, IcmpOutEchos), .output_off = offsetof(struct icmp_mib, IcmpOutEchos),
.input_off = offsetof(struct icmp_mib, IcmpInEchos), .input_off = offsetof(struct icmp_mib, IcmpInEchos),
.handler = icmp_echo, .handler = icmp_echo,
.error = 0,
}, },
[9] = { [9] = {
.output_off = offsetof(struct icmp_mib, dummy), .output_off = offsetof(struct icmp_mib, dummy),
...@@ -1050,56 +1040,48 @@ static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { ...@@ -1050,56 +1040,48 @@ static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = {
.handler = icmp_discard, .handler = icmp_discard,
.error = 1, .error = 1,
}, },
/* TIME EXCEEDED (11) */ [ICMP_TIME_EXCEEDED] = {
[11] = {
.output_off = offsetof(struct icmp_mib, IcmpOutTimeExcds), .output_off = offsetof(struct icmp_mib, IcmpOutTimeExcds),
.input_off = offsetof(struct icmp_mib,IcmpInTimeExcds), .input_off = offsetof(struct icmp_mib,IcmpInTimeExcds),
.handler = icmp_unreach, .handler = icmp_unreach,
.error = 1, .error = 1,
}, },
/* PARAMETER PROBLEM (12) */ [ICMP_PARAMETERPROB] = {
[12] = {
.output_off = offsetof(struct icmp_mib, IcmpOutParmProbs), .output_off = offsetof(struct icmp_mib, IcmpOutParmProbs),
.input_off = offsetof(struct icmp_mib, IcmpInParmProbs), .input_off = offsetof(struct icmp_mib, IcmpInParmProbs),
.handler = icmp_unreach, .handler = icmp_unreach,
.error = 1, .error = 1,
}, },
/* TIMESTAMP (13) */ [ICMP_TIMESTAMP] = {
[13] = {
.output_off = offsetof(struct icmp_mib, IcmpOutTimestamps), .output_off = offsetof(struct icmp_mib, IcmpOutTimestamps),
.input_off = offsetof(struct icmp_mib, IcmpInTimestamps), .input_off = offsetof(struct icmp_mib, IcmpInTimestamps),
.handler = icmp_timestamp, .handler = icmp_timestamp,
}, },
/* TIMESTAMP REPLY (14) */ [ICMP_TIMESTAMPREPLY] = {
[14] = {
.output_off = offsetof(struct icmp_mib, IcmpOutTimestampReps), .output_off = offsetof(struct icmp_mib, IcmpOutTimestampReps),
.input_off = offsetof(struct icmp_mib, IcmpInTimestampReps), .input_off = offsetof(struct icmp_mib, IcmpInTimestampReps),
.handler = icmp_discard, .handler = icmp_discard,
}, },
/* INFO (15) */ [ICMP_INFO_REQUEST] = {
[15] = {
.output_off = offsetof(struct icmp_mib, dummy), .output_off = offsetof(struct icmp_mib, dummy),
.input_off = offsetof(struct icmp_mib, dummy), .input_off = offsetof(struct icmp_mib, dummy),
.handler = icmp_discard, .handler = icmp_discard,
}, },
/* INFO REPLY (16) */ [ICMP_INFO_REPLY] = {
[16] = {
.output_off = offsetof(struct icmp_mib, dummy), .output_off = offsetof(struct icmp_mib, dummy),
.input_off = offsetof(struct icmp_mib, dummy), .input_off = offsetof(struct icmp_mib, dummy),
.handler = icmp_discard, .handler = icmp_discard,
}, },
/* ADDR MASK (17) */ [ICMP_ADDRESS] = {
[17] = {
.output_off = offsetof(struct icmp_mib, IcmpOutAddrMasks), .output_off = offsetof(struct icmp_mib, IcmpOutAddrMasks),
.input_off = offsetof(struct icmp_mib, IcmpInAddrMasks), .input_off = offsetof(struct icmp_mib, IcmpInAddrMasks),
.handler = icmp_address, .handler = icmp_address,
}, },
/* ADDR MASK REPLY (18) */ [ICMP_ADDRESSREPLY] = {
[18] = {
.output_off = offsetof(struct icmp_mib, IcmpOutAddrMaskReps), .output_off = offsetof(struct icmp_mib, IcmpOutAddrMaskReps),
.input_off = offsetof(struct icmp_mib, IcmpInAddrMaskReps), .input_off = offsetof(struct icmp_mib, IcmpInAddrMaskReps),
.handler = icmp_address_reply, .handler = icmp_address_reply,
} },
}; };
void __init icmp_init(struct net_proto_family *ops) void __init icmp_init(struct net_proto_family *ops)
......
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