* Copy most of @rt data into @info. * * If @flags contains NHR_COPY, copies dst,netmask and gw to the * pointers specified by @info structure. Assume such pointers * are zeroed sockaddr-like structures with sa_len field initialized * to reflect size of the provided buffer. if no NHR_COPY is specified, * point dst,netmask and gw @info fields to appropriate @rt values. * * if @flags contains
| 331 | * Returns 0 on success. |
| 332 | */ |
| 333 | static int |
| 334 | rt_exportinfo(struct rtentry *rt, struct nhop_object *nh, |
| 335 | struct rt_addrinfo *info, int flags) |
| 336 | { |
| 337 | struct rt_metrics *rmx; |
| 338 | struct sockaddr *src, *dst; |
| 339 | int sa_len; |
| 340 | |
| 341 | if (flags & NHR_COPY) { |
| 342 | /* Copy destination if dst is non-zero */ |
| 343 | src = rt_key(rt); |
| 344 | dst = info->rti_info[RTAX_DST]; |
| 345 | sa_len = src->sa_len; |
| 346 | if (dst != NULL) { |
| 347 | if (src->sa_len > dst->sa_len) |
| 348 | return (ENOMEM); |
| 349 | memcpy(dst, src, src->sa_len); |
| 350 | info->rti_addrs |= RTA_DST; |
| 351 | } |
| 352 | |
| 353 | /* Copy mask if set && dst is non-zero */ |
| 354 | src = rt_mask(rt); |
| 355 | dst = info->rti_info[RTAX_NETMASK]; |
| 356 | if (src != NULL && dst != NULL) { |
| 357 | /* |
| 358 | * Radix stores different value in sa_len, |
| 359 | * assume rt_mask() to have the same length |
| 360 | * as rt_key() |
| 361 | */ |
| 362 | if (sa_len > dst->sa_len) |
| 363 | return (ENOMEM); |
| 364 | memcpy(dst, src, src->sa_len); |
| 365 | info->rti_addrs |= RTA_NETMASK; |
| 366 | } |
| 367 | |
| 368 | /* Copy gateway is set && dst is non-zero */ |
| 369 | src = &nh->gw_sa; |
| 370 | dst = info->rti_info[RTAX_GATEWAY]; |
| 371 | if ((nhop_get_rtflags(nh) & RTF_GATEWAY) && |
| 372 | src != NULL && dst != NULL) { |
| 373 | if (src->sa_len > dst->sa_len) |
| 374 | return (ENOMEM); |
| 375 | memcpy(dst, src, src->sa_len); |
| 376 | info->rti_addrs |= RTA_GATEWAY; |
| 377 | } |
| 378 | } else { |
| 379 | info->rti_info[RTAX_DST] = rt_key(rt); |
| 380 | info->rti_addrs |= RTA_DST; |
| 381 | if (rt_mask(rt) != NULL) { |
| 382 | info->rti_info[RTAX_NETMASK] = rt_mask(rt); |
| 383 | info->rti_addrs |= RTA_NETMASK; |
| 384 | } |
| 385 | if (nhop_get_rtflags(nh) & RTF_GATEWAY) { |
| 386 | info->rti_info[RTAX_GATEWAY] = &nh->gw_sa; |
| 387 | info->rti_addrs |= RTA_GATEWAY; |
| 388 | } |
| 389 | } |
| 390 |
no test coverage detected