191 simple_get_bytes(const void *p, const void *end, void *res, int len)  in simple_get_bytes()  argument
193 	const void *q = (const void *)((const char *)p + len);  in simple_get_bytes()
194 	if (unlikely(q > end || q < p))  in simple_get_bytes()
196 	memcpy(res, p, len);  in simple_get_bytes()
201 simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)  in simple_get_netobj()  argument
206 	p = simple_get_bytes(p, end, &len, sizeof(len));  in simple_get_netobj()
207 	if (IS_ERR(p))  in simple_get_netobj()
208 		return p;  in simple_get_netobj()
209 	q = (const void *)((const char *)p + len);  in simple_get_netobj()
210 	if (unlikely(q > end || q < p))  in simple_get_netobj()
212 	res->data = kmemdup(p, len, GFP_NOFS);  in simple_get_netobj()
220 get_key(const void *p, const void *end,  in get_key()  argument
226 	p = simple_get_bytes(p, end, &alg, sizeof(alg));  in get_key()
227 	if (IS_ERR(p))  in get_key()
242 		p = ERR_PTR(-EINVAL);  in get_key()
245 	p = simple_get_netobj(p, end, &key);  in get_key()
246 	if (IS_ERR(p))  in get_key()
264 	return p;  in get_key()
270 	p = ERR_PTR(-EINVAL);  in get_key()
272 	return p;  in get_key()
276 gss_import_v1_context(const void *p, const void *end, struct krb5_ctx *ctx)  in gss_import_v1_context()  argument
280 	p = simple_get_bytes(p, end, &ctx->initiate, sizeof(ctx->initiate));  in gss_import_v1_context()
281 	if (IS_ERR(p))  in gss_import_v1_context()
289 		p = ERR_PTR(-EINVAL);  in gss_import_v1_context()
297 	if (unlikely(p + 20 > end || p + 20 < p)) {  in gss_import_v1_context()
298 		p = ERR_PTR(-EFAULT);  in gss_import_v1_context()
301 	p += 20;  in gss_import_v1_context()
302 	p = simple_get_bytes(p, end, &tmp, sizeof(tmp));  in gss_import_v1_context()
303 	if (IS_ERR(p))  in gss_import_v1_context()
306 		p = ERR_PTR(-ENOSYS);  in gss_import_v1_context()
309 	p = simple_get_bytes(p, end, &tmp, sizeof(tmp));  in gss_import_v1_context()
310 	if (IS_ERR(p))  in gss_import_v1_context()
313 		p = ERR_PTR(-ENOSYS);  in gss_import_v1_context()
316 	p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));  in gss_import_v1_context()
317 	if (IS_ERR(p))  in gss_import_v1_context()
319 	p = simple_get_bytes(p, end, &ctx->seq_send, sizeof(ctx->seq_send));  in gss_import_v1_context()
320 	if (IS_ERR(p))  in gss_import_v1_context()
322 	p = simple_get_netobj(p, end, &ctx->mech_used);  in gss_import_v1_context()
323 	if (IS_ERR(p))  in gss_import_v1_context()
325 	p = get_key(p, end, ctx, &ctx->enc);  in gss_import_v1_context()
326 	if (IS_ERR(p))  in gss_import_v1_context()
328 	p = get_key(p, end, ctx, &ctx->seq);  in gss_import_v1_context()
329 	if (IS_ERR(p))  in gss_import_v1_context()
331 	if (p != end) {  in gss_import_v1_context()
332 		p = ERR_PTR(-EFAULT);  in gss_import_v1_context()
345 	return PTR_ERR(p);  in gss_import_v1_context()
610 gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,  in gss_import_v2_context()  argument
615 	p = simple_get_bytes(p, end, &ctx->flags, sizeof(ctx->flags));  in gss_import_v2_context()
616 	if (IS_ERR(p))  in gss_import_v2_context()
620 	p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));  in gss_import_v2_context()
621 	if (IS_ERR(p))  in gss_import_v2_context()
623 	p = simple_get_bytes(p, end, &ctx->seq_send64, sizeof(ctx->seq_send64));  in gss_import_v2_context()
624 	if (IS_ERR(p))  in gss_import_v2_context()
631 		p = ERR_PTR(-EINVAL);  in gss_import_v2_context()
634 	p = simple_get_bytes(p, end, &ctx->enctype, sizeof(ctx->enctype));  in gss_import_v2_context()
635 	if (IS_ERR(p))  in gss_import_v2_context()
644 		p = ERR_PTR(-EINVAL);  in gss_import_v2_context()
649 	p = simple_get_bytes(p, end, ctx->Ksess, keylen);  in gss_import_v2_context()
650 	if (IS_ERR(p))  in gss_import_v2_context()
653 	if (p != end) {  in gss_import_v2_context()
654 		p = ERR_PTR(-EINVAL);  in gss_import_v2_context()
661 		p = ERR_PTR(-ENOMEM);  in gss_import_v2_context()
679 	return PTR_ERR(p);  in gss_import_v2_context()
683 gss_import_sec_context_kerberos(const void *p, size_t len,  in gss_import_sec_context_kerberos()  argument
688 	const void *end = (const void *)((const char *)p + len);  in gss_import_sec_context_kerberos()
697 		ret = gss_import_v1_context(p, end, ctx);  in gss_import_sec_context_kerberos()
699 		ret = gss_import_v2_context(p, end, ctx, gfp_mask);  in gss_import_sec_context_kerberos()