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Code Issues Releases Activity

ipsec_output(): add mtu argument

Browse Source 
Similarly, mtu is needed to decide inline IPSEC offloiad for the driver.

Sponsored by: NVIDIA networking
Differential revision:	https://reviews.freebsd.org/D44224
This commit is contained in:
Konstantin Belousov 2023-01-30 19:56:00 +02:00
parent de1da299da
commit 00524fd475
8 changed files with 33 additions and 31 deletions
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4
sys/net/if_ipsec.c
View File

@ -415,12 +415,12 @@ ipsec_transmit(struct ifnet *ifp, struct mbuf *m)
switch (af) {
#ifdef INET
case AF_INET:
error = ipsec4_process_packet(ifp, m, sp, NULL);
error = ipsec4_process_packet(ifp, m, sp, NULL, ifp->if_mtu);
break;
#endif
#ifdef INET6
case AF_INET6:
error = ipsec6_process_packet(ifp, m, sp, NULL);
error = ipsec6_process_packet(ifp, m, sp, NULL, ifp->if_mtu);
break;
#endif
default:

2
sys/netinet/ip_output.c
View File

@ -673,7 +673,7 @@ ip_output(struct mbuf *m, struct mbuf *opt, struct route *ro, int flags,
error = ENOBUFS;
goto bad;
}
if ((error = IPSEC_OUTPUT(ipv4, ifp, m, inp)) != 0) {
if ((error = IPSEC_OUTPUT(ipv4, ifp, m, inp, mtu)) != 0) {
if (error == EINPROGRESS)
error = 0;
goto done;

2
sys/netinet6/ip6_output.c
View File

@ -462,7 +462,7 @@ ip6_output(struct mbuf *m0, struct ip6_pktopts *opt,
error = ENOBUFS;
goto bad;
}
if ((error = IPSEC_OUTPUT(ipv6, ifp, m, inp)) != 0) {
if ((error = IPSEC_OUTPUT(ipv6, ifp, m, inp, mtu)) != 0) {
if (error == EINPROGRESS)
error = 0;
goto done;

2
sys/netipsec/ipsec.h
View File

@ -338,7 +338,7 @@ void ipsec4_setsockaddrs(const struct mbuf *, union sockaddr_union *,
int ipsec4_common_input_cb(struct mbuf *, struct secasvar *, int, int);
int ipsec4_check_pmtu(struct ifnet *, struct mbuf *, struct secpolicy *, int);
int ipsec4_process_packet(struct ifnet *, struct mbuf *, struct secpolicy *,
struct inpcb *);
struct inpcb *, u_long);
int ipsec_process_done(struct mbuf *, struct secpolicy *, struct secasvar *,
u_int);

2
sys/netipsec/ipsec6.h
View File

@ -68,7 +68,7 @@ void ipsec6_setsockaddrs(const struct mbuf *, union sockaddr_union *,
int ipsec6_common_input_cb(struct mbuf *, struct secasvar *, int, int);
int ipsec6_check_pmtu(struct ifnet *, struct mbuf *, struct secpolicy *, int);
int ipsec6_process_packet(struct ifnet *, struct mbuf *, struct secpolicy *,
struct inpcb *);
struct inpcb *, u_long);
int ip6_ipsec_filtertunnel(struct mbuf *);
int ip6_ipsec_pcbctl(struct inpcb *, struct sockopt *);

36
sys/netipsec/ipsec_output.c
View File

@ -188,7 +188,7 @@ ipsec4_allocsa(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
*/
static int
ipsec4_perform_request(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
struct inpcb *inp, u_int idx)
struct inpcb *inp, u_int idx, u_long mtu)
{
struct ipsec_ctx_data ctx;
union sockaddr_union *dst;
@ -290,10 +290,10 @@ ipsec4_perform_request(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
int
ipsec4_process_packet(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
struct inpcb *inp)
struct inpcb *inp, u_long mtu)
{
return (ipsec4_perform_request(ifp, m, sp, inp, 0));
return (ipsec4_perform_request(ifp, m, sp, inp, 0, mtu));
}
int
@ -371,7 +371,7 @@ ipsec4_check_pmtu(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
static int
ipsec4_common_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp,
int forwarding)
int forwarding, u_long mtu)
{
struct secpolicy *sp;
int error;
@ -423,7 +423,7 @@ ipsec4_common_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp,
return (error);
}
error = ipsec4_process_packet(ifp, m, sp, inp);
error = ipsec4_process_packet(ifp, m, sp, inp, mtu);
if (error == EJUSTRETURN) {
/*
* We had a SP with a level of 'use' and no SA. We
@ -443,7 +443,7 @@ ipsec4_common_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp,
* other values - mbuf consumed by IPsec.
*/
int
ipsec4_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp)
ipsec4_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp, u_long mtu)
{
/*
@ -454,7 +454,7 @@ ipsec4_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp)
if (m_tag_find(m, PACKET_TAG_IPSEC_OUT_DONE, NULL) != NULL)
return (0);
return (ipsec4_common_output(ifp, m, inp, 0));
return (ipsec4_common_output(ifp, m, inp, 0, mtu));
}
/*
@ -474,7 +474,7 @@ ipsec4_forward(struct mbuf *m)
m_freem(m);
return (EACCES);
}
return (ipsec4_common_output(NULL /* XXXKIB */, m, NULL, 1));
return (ipsec4_common_output(NULL /* XXXKIB */, m, NULL, 1, 0));
}
#endif
@ -584,7 +584,7 @@ ipsec6_allocsa(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
*/
static int
ipsec6_perform_request(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
struct inpcb *inp, u_int idx)
struct inpcb *inp, u_int idx, u_long mtu)
{
struct ipsec_ctx_data ctx;
union sockaddr_union *dst;
@ -676,10 +676,10 @@ ipsec6_perform_request(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
int
ipsec6_process_packet(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
struct inpcb *inp)
struct inpcb *inp, u_long mtu)
{
return (ipsec6_perform_request(ifp, m, sp, inp, 0));
return (ipsec6_perform_request(ifp, m, sp, inp, 0, mtu));
}
/*
@ -751,7 +751,7 @@ ipsec6_check_pmtu(struct ifnet *ifp, struct mbuf *m, struct secpolicy *sp,
static int
ipsec6_common_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp,
int forwarding)
int forwarding, u_long mtu)
{
struct secpolicy *sp;
int error;
@ -794,7 +794,7 @@ ipsec6_common_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp,
}
/* NB: callee frees mbuf and releases reference to SP */
error = ipsec6_process_packet(ifp, m, sp, inp);
error = ipsec6_process_packet(ifp, m, sp, inp, mtu);
if (error == EJUSTRETURN) {
/*
* We had a SP with a level of 'use' and no SA. We
@ -814,7 +814,7 @@ ipsec6_common_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp,
* other values - mbuf consumed by IPsec.
*/
int
ipsec6_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp)
ipsec6_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp, u_long mtu)
{
/*
@ -825,7 +825,7 @@ ipsec6_output(struct ifnet *ifp, struct mbuf *m, struct inpcb *inp)
if (m_tag_find(m, PACKET_TAG_IPSEC_OUT_DONE, NULL) != NULL)
return (0);
return (ipsec6_common_output(ifp, m, inp, 0));
return (ipsec6_common_output(ifp, m, inp, 0, mtu));
}
/*
@ -845,7 +845,7 @@ ipsec6_forward(struct mbuf *m)
m_freem(m);
return (EACCES);
}
return (ipsec6_common_output(NULL /* XXXKIB */, m, NULL, 1));
return (ipsec6_common_output(NULL /* XXXKIB */, m, NULL, 1, 0));
}
#endif /* INET6 */
@ -923,7 +923,7 @@ ipsec_process_done(struct mbuf *m, struct secpolicy *sp, struct secasvar *sav,
key_freesav(&sav);
IPSECSTAT_INC(ips_out_bundlesa);
return (ipsec4_perform_request(NULL, m, sp, NULL,
idx));
idx, 0));
/* NOTREACHED */
#endif
#ifdef INET6
@ -931,7 +931,7 @@ ipsec_process_done(struct mbuf *m, struct secpolicy *sp, struct secasvar *sav,
key_freesav(&sav);
IPSEC6STAT_INC(ips_out_bundlesa);
return (ipsec6_perform_request(NULL, m, sp, NULL,
idx));
idx, 0));
/* NOTREACHED */
#endif /* INET6 */
default:

9
sys/netipsec/ipsec_support.h
View File

@ -59,7 +59,7 @@ int ipsec4_in_reject(const struct mbuf *, struct inpcb *);
int ipsec4_input(struct mbuf *, int, int);
int ipsec4_forward(struct mbuf *);
int ipsec4_pcbctl(struct inpcb *, struct sockopt *);
int ipsec4_output(struct ifnet *, struct mbuf *, struct inpcb *);
int ipsec4_output(struct ifnet *, struct mbuf *, struct inpcb *, u_long);
int ipsec4_capability(struct mbuf *, u_int);
int ipsec4_ctlinput(ipsec_ctlinput_param_t);
#endif /* INET */
@ -69,7 +69,7 @@ int ipsec6_input(struct mbuf *, int, int);
int ipsec6_in_reject(const struct mbuf *, struct inpcb *);
int ipsec6_forward(struct mbuf *);
int ipsec6_pcbctl(struct inpcb *, struct sockopt *);
int ipsec6_output(struct ifnet *, struct mbuf *, struct inpcb *);
int ipsec6_output(struct ifnet *, struct mbuf *, struct inpcb *, u_long);
int ipsec6_capability(struct mbuf *, u_int);
int ipsec6_ctlinput(ipsec_ctlinput_param_t);
#endif /* INET6 */
@ -78,7 +78,8 @@ struct ipsec_methods {
int (*input)(struct mbuf *, int, int);
int (*check_policy)(const struct mbuf *, struct inpcb *);
int (*forward)(struct mbuf *);
int (*output)(struct ifnet *, struct mbuf *, struct inpcb *);
int (*output)(struct ifnet *, struct mbuf *, struct inpcb *,
u_long);
int (*pcbctl)(struct inpcb *, struct sockopt *);
size_t (*hdrsize)(struct inpcb *);
int (*capability)(struct mbuf *, u_int);
@ -189,7 +190,7 @@ int ipsec_kmod_check_policy(struct ipsec_support * const, struct mbuf *,
struct inpcb *);
int ipsec_kmod_forward(struct ipsec_support * const, struct mbuf *);
int ipsec_kmod_output(struct ipsec_support * const, struct ifnet *,
struct mbuf *, struct inpcb *);
struct mbuf *, struct inpcb *, u_long);
int ipsec_kmod_pcbctl(struct ipsec_support * const, struct inpcb *,
struct sockopt *);
int ipsec_kmod_capability(struct ipsec_support * const, struct mbuf *, u_int);

7
sys/netipsec/subr_ipsec.c
View File

@ -368,9 +368,10 @@ IPSEC_KMOD_METHOD(int, ipsec_kmod_ctlinput, sc,
ipsec_ctlinput_param_t param), METHOD_ARGS(param)
)
IPSEC_KMOD_METHOD(int, ipsec_kmod_output, sc,
output, METHOD_DECL(struct ipsec_support * const sc, struct ifnet *ifp,
struct mbuf *m, struct inpcb *inp), METHOD_ARGS(ifp, m, inp)
IPSEC_KMOD_METHOD(int, ipsec_kmod_output, sc, output,
METHOD_DECL(struct ipsec_support * const sc, struct ifnet *ifp,
struct mbuf *m, struct inpcb *inp, u_long mtu),
METHOD_ARGS(ifp, m, inp, mtu)
)
IPSEC_KMOD_METHOD(int, ipsec_kmod_pcbctl, sc,