cregit-Linux how code gets into the kernel

Release 4.11 net/ipv6/xfrm6_state.c

Directory: net/ipv6
/*
 * 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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明6243.97%19.09%
David S. Miller3222.70%436.36%
Thomas Egerer149.93%19.09%
Arnaldo Carvalho de Melo107.09%19.09%
Al Viro85.67%19.09%
Patrick McHardy64.26%19.09%
Andreas Steffen53.55%19.09%
Alexey Dobriyan42.84%19.09%
Total141100.00%11100.00%


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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明13784.05%133.33%
Thomas Egerer2314.11%133.33%
David S. Miller31.84%133.33%
Total163100.00%3100.00%

/* 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

PersonTokensPropCommitsCommitProp
Masahide Nakamura11065.48%350.00%
Hideaki Yoshifuji / 吉藤英明5733.93%233.33%
Hannes Eder10.60%116.67%
Total168100.00%6100.00%

/* * 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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明7193.42%133.33%
Masahide Nakamura45.26%133.33%
Américo Wang11.32%133.33%
Total76100.00%3100.00%


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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明3271.11%150.00%
Masahide Nakamura1328.89%150.00%
Total45100.00%2100.00%

/* * 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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明3863.33%116.67%
Masahide Nakamura2033.33%350.00%
Herbert Xu11.67%116.67%
Américo Wang11.67%116.67%
Total60100.00%6100.00%


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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明3986.67%150.00%
Masahide Nakamura613.33%150.00%
Total45100.00%2100.00%


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

PersonTokensPropCommitsCommitProp
Herbert Xu113100.00%2100.00%
Total113100.00%2100.00%

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

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明1280.00%150.00%
Daniel Lezcano320.00%150.00%
Total15100.00%2100.00%


void xfrm6_state_fini(void) { xfrm_state_unregister_afinfo(&xfrm6_state_afinfo); }

Contributors

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明13100.00%1100.00%
Total13100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Hideaki Yoshifuji / 吉藤英明49552.27%26.25%
Masahide Nakamura16117.00%39.38%
Herbert Xu15316.16%721.88%
Thomas Egerer424.44%13.12%
David S. Miller353.70%515.62%
Arnaldo Carvalho de Melo101.06%13.12%
Patrick McHardy90.95%26.25%
Al Viro80.84%13.12%
Steffen Klassert50.53%13.12%
Andreas Steffen50.53%13.12%
Miika Komu50.53%13.12%
Hannes Frederic Sowa50.53%13.12%
Alexey Dobriyan40.42%13.12%
Paul Gortmaker30.32%13.12%
Daniel Lezcano30.32%13.12%
Américo Wang20.21%13.12%
Hannes Eder10.11%13.12%
Ian Morris10.11%13.12%
Total947100.00%32100.00%
Directory: net/ipv6
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.