190 simple_get_bytes(const void *p, const void *end, void *res, int len)  in simple_get_bytes()  argument
192 	const void *q = (const void *)((const char *)p + len);  in simple_get_bytes()
193 	if (unlikely(q > end || q < p))  in simple_get_bytes()
195 	memcpy(res, p, len);  in simple_get_bytes()
200 simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)  in simple_get_netobj()  argument
205 	p = simple_get_bytes(p, end, &len, sizeof(len));  in simple_get_netobj()
206 	if (IS_ERR(p))  in simple_get_netobj()
207 		return p;  in simple_get_netobj()
208 	q = (const void *)((const char *)p + len);  in simple_get_netobj()
209 	if (unlikely(q > end || q < p))  in simple_get_netobj()
211 	res->data = kmemdup(p, len, GFP_NOFS);  in simple_get_netobj()
219 get_key(const void *p, const void *end,  in get_key()  argument
225 	p = simple_get_bytes(p, end, &alg, sizeof(alg));  in get_key()
226 	if (IS_ERR(p))  in get_key()
241 		p = ERR_PTR(-EINVAL);  in get_key()
244 	p = simple_get_netobj(p, end, &key);  in get_key()
245 	if (IS_ERR(p))  in get_key()
263 	return p;  in get_key()
269 	p = ERR_PTR(-EINVAL);  in get_key()
271 	return p;  in get_key()
275 gss_import_v1_context(const void *p, const void *end, struct krb5_ctx *ctx)  in gss_import_v1_context()  argument
279 	p = simple_get_bytes(p, end, &ctx->initiate, sizeof(ctx->initiate));  in gss_import_v1_context()
280 	if (IS_ERR(p))  in gss_import_v1_context()
288 		p = ERR_PTR(-EINVAL);  in gss_import_v1_context()
296 	if (unlikely(p + 20 > end || p + 20 < p)) {  in gss_import_v1_context()
297 		p = ERR_PTR(-EFAULT);  in gss_import_v1_context()
300 	p += 20;  in gss_import_v1_context()
301 	p = simple_get_bytes(p, end, &tmp, sizeof(tmp));  in gss_import_v1_context()
302 	if (IS_ERR(p))  in gss_import_v1_context()
305 		p = ERR_PTR(-ENOSYS);  in gss_import_v1_context()
308 	p = simple_get_bytes(p, end, &tmp, sizeof(tmp));  in gss_import_v1_context()
309 	if (IS_ERR(p))  in gss_import_v1_context()
312 		p = ERR_PTR(-ENOSYS);  in gss_import_v1_context()
315 	p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));  in gss_import_v1_context()
316 	if (IS_ERR(p))  in gss_import_v1_context()
318 	p = simple_get_bytes(p, end, &ctx->seq_send, sizeof(ctx->seq_send));  in gss_import_v1_context()
319 	if (IS_ERR(p))  in gss_import_v1_context()
321 	p = simple_get_netobj(p, end, &ctx->mech_used);  in gss_import_v1_context()
322 	if (IS_ERR(p))  in gss_import_v1_context()
324 	p = get_key(p, end, ctx, &ctx->enc);  in gss_import_v1_context()
325 	if (IS_ERR(p))  in gss_import_v1_context()
327 	p = get_key(p, end, ctx, &ctx->seq);  in gss_import_v1_context()
328 	if (IS_ERR(p))  in gss_import_v1_context()
330 	if (p != end) {  in gss_import_v1_context()
331 		p = ERR_PTR(-EFAULT);  in gss_import_v1_context()
344 	return PTR_ERR(p);  in gss_import_v1_context()
607 gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,  in gss_import_v2_context()  argument
612 	p = simple_get_bytes(p, end, &ctx->flags, sizeof(ctx->flags));  in gss_import_v2_context()
613 	if (IS_ERR(p))  in gss_import_v2_context()
617 	p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));  in gss_import_v2_context()
618 	if (IS_ERR(p))  in gss_import_v2_context()
620 	p = simple_get_bytes(p, end, &ctx->seq_send64, sizeof(ctx->seq_send64));  in gss_import_v2_context()
621 	if (IS_ERR(p))  in gss_import_v2_context()
628 		p = ERR_PTR(-EINVAL);  in gss_import_v2_context()
631 	p = simple_get_bytes(p, end, &ctx->enctype, sizeof(ctx->enctype));  in gss_import_v2_context()
632 	if (IS_ERR(p))  in gss_import_v2_context()
641 		p = ERR_PTR(-EINVAL);  in gss_import_v2_context()
646 	p = simple_get_bytes(p, end, ctx->Ksess, keylen);  in gss_import_v2_context()
647 	if (IS_ERR(p))  in gss_import_v2_context()
650 	if (p != end) {  in gss_import_v2_context()
651 		p = ERR_PTR(-EINVAL);  in gss_import_v2_context()
658 		p = ERR_PTR(-ENOMEM);  in gss_import_v2_context()
676 	return PTR_ERR(p);  in gss_import_v2_context()
680 gss_import_sec_context_kerberos(const void *p, size_t len,  in gss_import_sec_context_kerberos()  argument
685 	const void *end = (const void *)((const char *)p + len);  in gss_import_sec_context_kerberos()
694 		ret = gss_import_v1_context(p, end, ctx);  in gss_import_sec_context_kerberos()
696 		ret = gss_import_v2_context(p, end, ctx, gfp_mask);  in gss_import_sec_context_kerberos()