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authorKevin Coffman <kwc@citi.umich.edu>2010-03-17 13:02:55 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-05-14 15:09:17 -0400
commit958142e97e04d6c266ae093739bbbbd03afcd497 (patch)
treef945fcf7105663bfccc124c347441268dcf06367 /net/sunrpc/auth_gss/gss_krb5_mech.c
parent683ac6656cb05b6e83593770ffc049eee4a4d119 (diff)
gss_krb5: add support for triple-des encryption
Add the final pieces to support the triple-des encryption type. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_mech.c')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_mech.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 03f1dcddbd29..7cebdf843266 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -71,6 +71,26 @@ static const struct gss_krb5_enctype supported_gss_krb5_enctypes[] = {
.cksumlength = 8,
.keyed_cksum = 0,
},
+ /*
+ * 3DES
+ */
+ {
+ .etype = ENCTYPE_DES3_CBC_RAW,
+ .ctype = CKSUMTYPE_HMAC_SHA1_DES3,
+ .name = "des3-hmac-sha1",
+ .encrypt_name = "cbc(des3_ede)",
+ .cksum_name = "hmac(sha1)",
+ .encrypt = krb5_encrypt,
+ .decrypt = krb5_decrypt,
+ .mk_key = gss_krb5_des3_make_key,
+ .signalg = SGN_ALG_HMAC_SHA1_DES3_KD,
+ .sealalg = SEAL_ALG_DES3KD,
+ .keybytes = 21,
+ .keylength = 24,
+ .blocksize = 8,
+ .cksumlength = 20,
+ .keyed_cksum = 1,
+ },
};
static const int num_supported_enctypes =
@@ -440,6 +460,9 @@ gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx)
p = simple_get_bytes(p, end, &ctx->enctype, sizeof(ctx->enctype));
if (IS_ERR(p))
goto out_err;
+ /* Map ENCTYPE_DES3_CBC_SHA1 to ENCTYPE_DES3_CBC_RAW */
+ if (ctx->enctype == ENCTYPE_DES3_CBC_SHA1)
+ ctx->enctype = ENCTYPE_DES3_CBC_RAW;
ctx->gk5e = get_gss_krb5_enctype(ctx->enctype);
if (ctx->gk5e == NULL) {
dprintk("gss_kerberos_mech: unsupported krb5 enctype %u\n",