| 2184 | } |
| 2185 | |
| 2186 | static void |
| 2187 | pf_change_ap(struct mbuf *m, struct pf_addr *a, u_int16_t *p, u_int16_t *ic, |
| 2188 | u_int16_t *pc, struct pf_addr *an, u_int16_t pn, u_int8_t u, |
| 2189 | sa_family_t af) |
| 2190 | { |
| 2191 | struct pf_addr ao; |
| 2192 | u_int16_t po = *p; |
| 2193 | |
| 2194 | PF_ACPY(&ao, a, af); |
| 2195 | PF_ACPY(a, an, af); |
| 2196 | |
| 2197 | if (m->m_pkthdr.csum_flags & (CSUM_DELAY_DATA | CSUM_DELAY_DATA_IPV6)) |
| 2198 | *pc = ~*pc; |
| 2199 | |
| 2200 | *p = pn; |
| 2201 | |
| 2202 | switch (af) { |
| 2203 | #ifdef INET |
| 2204 | case AF_INET: |
| 2205 | *ic = pf_cksum_fixup(pf_cksum_fixup(*ic, |
| 2206 | ao.addr16[0], an->addr16[0], 0), |
| 2207 | ao.addr16[1], an->addr16[1], 0); |
| 2208 | *p = pn; |
| 2209 | |
| 2210 | *pc = pf_cksum_fixup(pf_cksum_fixup(*pc, |
| 2211 | ao.addr16[0], an->addr16[0], u), |
| 2212 | ao.addr16[1], an->addr16[1], u); |
| 2213 | |
| 2214 | *pc = pf_proto_cksum_fixup(m, *pc, po, pn, u); |
| 2215 | break; |
| 2216 | #endif /* INET */ |
| 2217 | #ifdef INET6 |
| 2218 | case AF_INET6: |
| 2219 | *pc = pf_cksum_fixup(pf_cksum_fixup(pf_cksum_fixup( |
| 2220 | pf_cksum_fixup(pf_cksum_fixup(pf_cksum_fixup( |
| 2221 | pf_cksum_fixup(pf_cksum_fixup(*pc, |
| 2222 | ao.addr16[0], an->addr16[0], u), |
| 2223 | ao.addr16[1], an->addr16[1], u), |
| 2224 | ao.addr16[2], an->addr16[2], u), |
| 2225 | ao.addr16[3], an->addr16[3], u), |
| 2226 | ao.addr16[4], an->addr16[4], u), |
| 2227 | ao.addr16[5], an->addr16[5], u), |
| 2228 | ao.addr16[6], an->addr16[6], u), |
| 2229 | ao.addr16[7], an->addr16[7], u); |
| 2230 | |
| 2231 | *pc = pf_proto_cksum_fixup(m, *pc, po, pn, u); |
| 2232 | break; |
| 2233 | #endif /* INET6 */ |
| 2234 | } |
| 2235 | |
| 2236 | if (m->m_pkthdr.csum_flags & (CSUM_DELAY_DATA | |
| 2237 | CSUM_DELAY_DATA_IPV6)) { |
| 2238 | *pc = ~*pc; |
| 2239 | if (! *pc) |
| 2240 | *pc = 0xffff; |
| 2241 | } |
| 2242 | } |
| 2243 |
no test coverage detected