Release 4.11 net/ipv6/xfrm6_state.c
/*
* xfrm6_state.c: based on xfrm4_state.c
*
* Authors:
* Mitsuru KANDA @USAGI
* Kazunori MIYAZAWA @USAGI
* Kunihiro Ishiguro <kunihiro@ipinfusion.com>
* IPv6 support
* YOSHIFUJI Hideaki @USAGI
* Split up af-specific portion
*
*/
#include <net/xfrm.h>
#include <linux/pfkeyv2.h>
#include <linux/ipsec.h>
#include <linux/netfilter_ipv6.h>
#include <linux/export.h>
#include <net/dsfield.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
static void
__xfrm6_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl)
{
const struct flowi6 *fl6 = &fl->u.ip6;
/* Initialize temporary selector matching only
* to current session. */
*(struct in6_addr *)&sel->daddr = fl6->daddr;
*(struct in6_addr *)&sel->saddr = fl6->saddr;
sel->dport = xfrm_flowi_dport(fl, &fl6->uli);
sel->dport_mask = htons(0xffff);
sel->sport = xfrm_flowi_sport(fl, &fl6->uli);
sel->sport_mask = htons(0xffff);
sel->family = AF_INET6;
sel->prefixlen_d = 128;
sel->prefixlen_s = 128;
sel->proto = fl6->flowi6_proto;
sel->ifindex = fl6->flowi6_oif;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 62 | 43.97% | 1 | 9.09% |
David S. Miller | 32 | 22.70% | 4 | 36.36% |
Thomas Egerer | 14 | 9.93% | 1 | 9.09% |
Arnaldo Carvalho de Melo | 10 | 7.09% | 1 | 9.09% |
Al Viro | 8 | 5.67% | 1 | 9.09% |
Patrick McHardy | 6 | 4.26% | 1 | 9.09% |
Andreas Steffen | 5 | 3.55% | 1 | 9.09% |
Alexey Dobriyan | 4 | 2.84% | 1 | 9.09% |
Total | 141 | 100.00% | 11 | 100.00% |
static void
xfrm6_init_temprop(struct xfrm_state *x, const struct xfrm_tmpl *tmpl,
const xfrm_address_t *daddr, const xfrm_address_t *saddr)
{
x->id = tmpl->id;
if (ipv6_addr_any((struct in6_addr *)&x->id.daddr))
memcpy(&x->id.daddr, daddr, sizeof(x->sel.daddr));
memcpy(&x->props.saddr, &tmpl->saddr, sizeof(x->props.saddr));
if (ipv6_addr_any((struct in6_addr *)&x->props.saddr))
memcpy(&x->props.saddr, saddr, sizeof(x->props.saddr));
x->props.mode = tmpl->mode;
x->props.reqid = tmpl->reqid;
x->props.family = AF_INET6;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 137 | 84.05% | 1 | 33.33% |
Thomas Egerer | 23 | 14.11% | 1 | 33.33% |
David S. Miller | 3 | 1.84% | 1 | 33.33% |
Total | 163 | 100.00% | 3 | 100.00% |
/* distribution counting sort function for xfrm_state and xfrm_tmpl */
static int
__xfrm6_sort(void **dst, void **src, int n, int (*cmp)(void *p), int maxclass)
{
int i;
int class[XFRM_MAX_DEPTH];
int count[maxclass];
memset(count, 0, sizeof(count));
for (i = 0; i < n; i++) {
int c;
class[i] = c = cmp(src[i]);
count[c]++;
}
for (i = 2; i < maxclass; i++)
count[i] += count[i - 1];
for (i = 0; i < n; i++) {
dst[count[class[i] - 1]++] = src[i];
src[i] = NULL;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Masahide Nakamura | 110 | 65.48% | 3 | 50.00% |
Hideaki Yoshifuji / 吉藤英明 | 57 | 33.93% | 2 | 33.33% |
Hannes Eder | 1 | 0.60% | 1 | 16.67% |
Total | 168 | 100.00% | 6 | 100.00% |
/*
* Rule for xfrm_state:
*
* rule 1: select IPsec transport except AH
* rule 2: select MIPv6 RO or inbound trigger
* rule 3: select IPsec transport AH
* rule 4: select IPsec tunnel
* rule 5: others
*/
static int __xfrm6_state_sort_cmp(void *p)
{
struct xfrm_state *v = p;
switch (v->props.mode) {
case XFRM_MODE_TRANSPORT:
if (v->id.proto != IPPROTO_AH)
return 1;
else
return 3;
#if IS_ENABLED(CONFIG_IPV6_MIP6)
case XFRM_MODE_ROUTEOPTIMIZATION:
case XFRM_MODE_IN_TRIGGER:
return 2;
#endif
case XFRM_MODE_TUNNEL:
case XFRM_MODE_BEET:
return 4;
}
return 5;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 71 | 93.42% | 1 | 33.33% |
Masahide Nakamura | 4 | 5.26% | 1 | 33.33% |
Américo Wang | 1 | 1.32% | 1 | 33.33% |
Total | 76 | 100.00% | 3 | 100.00% |
static int
__xfrm6_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n)
{
return __xfrm6_sort((void **)dst, (void **)src, n,
__xfrm6_state_sort_cmp, 6);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 32 | 71.11% | 1 | 50.00% |
Masahide Nakamura | 13 | 28.89% | 1 | 50.00% |
Total | 45 | 100.00% | 2 | 100.00% |
/*
* Rule for xfrm_tmpl:
*
* rule 1: select IPsec transport
* rule 2: select MIPv6 RO or inbound trigger
* rule 3: select IPsec tunnel
* rule 4: others
*/
static int __xfrm6_tmpl_sort_cmp(void *p)
{
struct xfrm_tmpl *v = p;
switch (v->mode) {
case XFRM_MODE_TRANSPORT:
return 1;
#if IS_ENABLED(CONFIG_IPV6_MIP6)
case XFRM_MODE_ROUTEOPTIMIZATION:
case XFRM_MODE_IN_TRIGGER:
return 2;
#endif
case XFRM_MODE_TUNNEL:
case XFRM_MODE_BEET:
return 3;
}
return 4;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 38 | 63.33% | 1 | 16.67% |
Masahide Nakamura | 20 | 33.33% | 3 | 50.00% |
Herbert Xu | 1 | 1.67% | 1 | 16.67% |
Américo Wang | 1 | 1.67% | 1 | 16.67% |
Total | 60 | 100.00% | 6 | 100.00% |
static int
__xfrm6_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n)
{
return __xfrm6_sort((void **)dst, (void **)src, n,
__xfrm6_tmpl_sort_cmp, 5);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 39 | 86.67% | 1 | 50.00% |
Masahide Nakamura | 6 | 13.33% | 1 | 50.00% |
Total | 45 | 100.00% | 2 | 100.00% |
int xfrm6_extract_header(struct sk_buff *skb)
{
struct ipv6hdr *iph = ipv6_hdr(skb);
XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
XFRM_MODE_SKB_CB(skb)->id = 0;
XFRM_MODE_SKB_CB(skb)->frag_off = htons(IP_DF);
XFRM_MODE_SKB_CB(skb)->tos = ipv6_get_dsfield(iph);
XFRM_MODE_SKB_CB(skb)->ttl = iph->hop_limit;
XFRM_MODE_SKB_CB(skb)->optlen = 0;
memcpy(XFRM_MODE_SKB_CB(skb)->flow_lbl, iph->flow_lbl,
sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 113 | 100.00% | 2 | 100.00% |
Total | 113 | 100.00% | 2 | 100.00% |
static struct xfrm_state_afinfo xfrm6_state_afinfo = {
.family = AF_INET6,
.proto = IPPROTO_IPV6,
.eth_proto = htons(ETH_P_IPV6),
.owner = THIS_MODULE,
.init_tempsel = __xfrm6_init_tempsel,
.init_temprop = xfrm6_init_temprop,
.tmpl_sort = __xfrm6_tmpl_sort,
.state_sort = __xfrm6_state_sort,
.output = xfrm6_output,
.output_finish = xfrm6_output_finish,
.extract_input = xfrm6_extract_input,
.extract_output = xfrm6_extract_output,
.transport_finish = xfrm6_transport_finish,
.local_error = xfrm6_local_error,
};
int __init xfrm6_state_init(void)
{
return xfrm_state_register_afinfo(&xfrm6_state_afinfo);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 12 | 80.00% | 1 | 50.00% |
Daniel Lezcano | 3 | 20.00% | 1 | 50.00% |
Total | 15 | 100.00% | 2 | 100.00% |
void xfrm6_state_fini(void)
{
xfrm_state_unregister_afinfo(&xfrm6_state_afinfo);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 13 | 100.00% | 1 | 100.00% |
Total | 13 | 100.00% | 1 | 100.00% |
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Hideaki Yoshifuji / 吉藤英明 | 495 | 52.27% | 2 | 6.25% |
Masahide Nakamura | 161 | 17.00% | 3 | 9.38% |
Herbert Xu | 153 | 16.16% | 7 | 21.88% |
Thomas Egerer | 42 | 4.44% | 1 | 3.12% |
David S. Miller | 35 | 3.70% | 5 | 15.62% |
Arnaldo Carvalho de Melo | 10 | 1.06% | 1 | 3.12% |
Patrick McHardy | 9 | 0.95% | 2 | 6.25% |
Al Viro | 8 | 0.84% | 1 | 3.12% |
Steffen Klassert | 5 | 0.53% | 1 | 3.12% |
Andreas Steffen | 5 | 0.53% | 1 | 3.12% |
Miika Komu | 5 | 0.53% | 1 | 3.12% |
Hannes Frederic Sowa | 5 | 0.53% | 1 | 3.12% |
Alexey Dobriyan | 4 | 0.42% | 1 | 3.12% |
Paul Gortmaker | 3 | 0.32% | 1 | 3.12% |
Daniel Lezcano | 3 | 0.32% | 1 | 3.12% |
Américo Wang | 2 | 0.21% | 1 | 3.12% |
Hannes Eder | 1 | 0.11% | 1 | 3.12% |
Ian Morris | 1 | 0.11% | 1 | 3.12% |
Total | 947 | 100.00% | 32 | 100.00% |
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