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Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_seal.c')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_seal.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index 5f1d36dfbcf..b8f42ef7178 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -78,7 +78,7 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
struct krb5_ctx *ctx = gss_ctx->internal_ctx_id;
char cksumdata[16];
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
- unsigned char *ptr, *krb5_hdr, *msg_start;
+ unsigned char *ptr, *msg_start;
s32 now;
u32 seq_send;
@@ -87,36 +87,36 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
now = get_seconds();
- token->len = g_token_size(&ctx->mech_used, 24);
+ token->len = g_token_size(&ctx->mech_used, GSS_KRB5_TOK_HDR_LEN + 8);
ptr = token->data;
- g_make_token_header(&ctx->mech_used, 24, &ptr);
+ g_make_token_header(&ctx->mech_used, GSS_KRB5_TOK_HDR_LEN + 8, &ptr);
- *ptr++ = (unsigned char) ((KG_TOK_MIC_MSG>>8)&0xff);
- *ptr++ = (unsigned char) (KG_TOK_MIC_MSG&0xff);
+ /* ptr now at header described in rfc 1964, section 1.2.1: */
+ ptr[0] = (unsigned char) ((KG_TOK_MIC_MSG >> 8) & 0xff);
+ ptr[1] = (unsigned char) (KG_TOK_MIC_MSG & 0xff);
- /* ptr now at byte 2 of header described in rfc 1964, section 1.2.1: */
- krb5_hdr = ptr - 2;
- msg_start = krb5_hdr + 24;
+ msg_start = ptr + GSS_KRB5_TOK_HDR_LEN + 8;
- *(__be16 *)(krb5_hdr + 2) = htons(SGN_ALG_DES_MAC_MD5);
- memset(krb5_hdr + 4, 0xff, 4);
+ *(__be16 *)(ptr + 2) = htons(SGN_ALG_DES_MAC_MD5);
+ memset(ptr + 4, 0xff, 4);
- if (make_checksum("md5", krb5_hdr, 8, text, 0, &md5cksum))
+ if (make_checksum("md5", ptr, 8, text, 0, &md5cksum))
return GSS_S_FAILURE;
if (krb5_encrypt(ctx->seq, NULL, md5cksum.data,
md5cksum.data, md5cksum.len))
return GSS_S_FAILURE;
- memcpy(krb5_hdr + 16, md5cksum.data + md5cksum.len - 8, 8);
+ memcpy(ptr + GSS_KRB5_TOK_HDR_LEN, md5cksum.data + md5cksum.len - 8, 8);
spin_lock(&krb5_seq_lock);
seq_send = ctx->seq_send++;
spin_unlock(&krb5_seq_lock);
if (krb5_make_seq_num(ctx->seq, ctx->initiate ? 0 : 0xff,
- seq_send, krb5_hdr + 16, krb5_hdr + 8))
+ seq_send, ptr + GSS_KRB5_TOK_HDR_LEN,
+ ptr + 8))
return GSS_S_FAILURE;
return (ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;