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| author | Chuck Lever <chuck.lever@oracle.com> | 2023-01-15 12:22:30 -0500 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2023-02-20 09:20:42 -0500 |
| commit | af664fc9023e69d1a90800c0f815c296bf727e18 (patch) | |
| tree | 65af47f64b7f6dc16767a3a793880a454c93efa9 /net/sunrpc/auth_gss/gss_krb5_mech.c | |
| parent | 8b3a09f3454240cb2c2ab3da02b86f354aab0bd6 (diff) | |
| download | linux-af664fc9023e69d1a90800c0f815c296bf727e18.tar.gz | |
SUNRPC: Add new subkey length fields
The aes256-cts-hmac-sha384-192 enctype specifies the length of its
checksum and integrity subkeys as 192 bits, but the length of its
encryption subkey (Ke) as 256 bits. Add new fields to struct
gss_krb5_enctype that specify the key lengths individually, and
where needed, use the correct new field instead of ->keylength.
Tested-by: Scott Mayhew <smayhew@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_mech.c')
| -rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_mech.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c index 45f461f9b5ba78..ec3cca8fadc5c3 100644 --- a/net/sunrpc/auth_gss/gss_krb5_mech.c +++ b/net/sunrpc/auth_gss/gss_krb5_mech.c @@ -108,8 +108,11 @@ static const struct gss_krb5_enctype supported_gss_krb5_enctypes[] = { .signalg = -1, .sealalg = -1, .keybytes = 16, - .keylength = 16, - .cksumlength = 12, + .keylength = BITS2OCTETS(128), + .Kc_length = BITS2OCTETS(128), + .Ke_length = BITS2OCTETS(128), + .Ki_length = BITS2OCTETS(128), + .cksumlength = BITS2OCTETS(96), .keyed_cksum = 1, }, /* @@ -135,8 +138,11 @@ static const struct gss_krb5_enctype supported_gss_krb5_enctypes[] = { .signalg = -1, .sealalg = -1, .keybytes = 32, - .keylength = 32, - .cksumlength = 12, + .keylength = BITS2OCTETS(256), + .Kc_length = BITS2OCTETS(256), + .Ke_length = BITS2OCTETS(256), + .Ki_length = BITS2OCTETS(256), + .cksumlength = BITS2OCTETS(96), .keyed_cksum = 1, }, #endif @@ -423,12 +429,12 @@ gss_krb5_import_ctx_v2(struct krb5_ctx *ctx, gfp_t gfp_mask) struct xdr_netobj keyout; int ret = -EINVAL; - keyout.data = kmalloc(ctx->gk5e->keylength, gfp_mask); + keyout.data = kmalloc(GSS_KRB5_MAX_KEYLEN, gfp_mask); if (!keyout.data) return -ENOMEM; - keyout.len = ctx->gk5e->keylength; /* initiator seal encryption */ + keyout.len = ctx->gk5e->Ke_length; if (krb5_derive_key(ctx, &keyin, &keyout, KG_USAGE_INITIATOR_SEAL, KEY_USAGE_SEED_ENCRYPTION, gfp_mask)) goto out; @@ -461,6 +467,7 @@ gss_krb5_import_ctx_v2(struct krb5_ctx *ctx, gfp_t gfp_mask) } /* initiator sign checksum */ + keyout.len = ctx->gk5e->Kc_length; if (krb5_derive_key(ctx, &keyin, &keyout, KG_USAGE_INITIATOR_SIGN, KEY_USAGE_SEED_CHECKSUM, gfp_mask)) goto out_free; @@ -477,6 +484,7 @@ gss_krb5_import_ctx_v2(struct krb5_ctx *ctx, gfp_t gfp_mask) goto out_free; /* initiator seal integrity */ + keyout.len = ctx->gk5e->Ki_length; if (krb5_derive_key(ctx, &keyin, &keyout, KG_USAGE_INITIATOR_SEAL, KEY_USAGE_SEED_INTEGRITY, gfp_mask)) goto out_free; |