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Deprecate 3des support in IPsec for FreeBSD 13.

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RFC 8221 does not outright ban 3des as the algorithms deprecated for
13 in r348205, but it is listed as a SHOULD NOT and will likely be a
MUST NOT by the time 13 ships.

Discussed with:	bjk
MFC after:	1 week
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D24341
This commit is contained in:
John Baldwin 2020-04-22 19:44:33 +00:00
parent 62af2dc3fb
commit e27a9ad8e6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=360202
1 changed files with 5 additions and 1 deletions
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6
sys/netipsec/xform_esp.c
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@ -94,7 +94,7 @@ SYSCTL_VNET_PCPUSTAT(_net_inet_esp, IPSECCTL_STATS, stats,
struct espstat, espstat,
"ESP statistics (struct espstat, netipsec/esp_var.h");
static struct timeval deswarn, blfwarn, castwarn, camelliawarn;
static struct timeval deswarn, blfwarn, castwarn, camelliawarn, tdeswarn;
static int esp_input_cb(struct cryptop *op);
static int esp_output_cb(struct cryptop *crp);
@ -164,6 +164,10 @@ esp_init(struct secasvar *sav, struct xformsw *xsp)
if (ratecheck(&deswarn, &ipsec_warn_interval))
gone_in(13, "DES cipher for IPsec");
break;
case SADB_EALG_3DESCBC:
if (ratecheck(&tdeswarn, &ipsec_warn_interval))
gone_in(13, "DES cipher for IPsec");
break;
case SADB_X_EALG_BLOWFISHCBC:
if (ratecheck(&blfwarn, &ipsec_warn_interval))
gone_in(13, "Blowfish cipher for IPsec");