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sys/netinet/libalias/alias.c
| Show First 20 Lines • Show All 1,407 Lines • ▼ Show 20 Lines | |||||
| /* 172.16.0.0 -> 172.31.255.255 */ | /* 172.16.0.0 -> 172.31.255.255 */ | ||||
| #define UNREG_ADDR_B_LOWER 0xac100000 | #define UNREG_ADDR_B_LOWER 0xac100000 | ||||
| #define UNREG_ADDR_B_UPPER 0xac1fffff | #define UNREG_ADDR_B_UPPER 0xac1fffff | ||||
| /* 192.168.0.0 -> 192.168.255.255 */ | /* 192.168.0.0 -> 192.168.255.255 */ | ||||
| #define UNREG_ADDR_C_LOWER 0xc0a80000 | #define UNREG_ADDR_C_LOWER 0xc0a80000 | ||||
| #define UNREG_ADDR_C_UPPER 0xc0a8ffff | #define UNREG_ADDR_C_UPPER 0xc0a8ffff | ||||
| /* 100.64.0.0 -> 100.127.255.255 (RFC 6598) */ | |||||
| #define UNREG_ADDR_RFC6598_LOWER 0x64400000 | |||||
| #define UNREG_ADDR_RFC6598_UPPER 0x647fffff | |||||
| int | int | ||||
| LibAliasOut(struct libalias *la, char *ptr, int maxpacketsize) | LibAliasOut(struct libalias *la, char *ptr, int maxpacketsize) | ||||
| { | { | ||||
| int res; | int res; | ||||
| LIBALIAS_LOCK(la); | LIBALIAS_LOCK(la); | ||||
| res = LibAliasOutLocked(la, ptr, maxpacketsize, 1); | res = LibAliasOutLocked(la, ptr, maxpacketsize, 1); | ||||
| LIBALIAS_UNLOCK(la); | LIBALIAS_UNLOCK(la); | ||||
| Show All 35 Lines | ) | ||||
| /* Defense against mangled packets */ | /* Defense against mangled packets */ | ||||
| if (ntohs(pip->ip_len) > maxpacketsize | if (ntohs(pip->ip_len) > maxpacketsize | ||||
| || (pip->ip_hl << 2) > maxpacketsize) { | || (pip->ip_hl << 2) > maxpacketsize) { | ||||
| iresult = PKT_ALIAS_IGNORED; | iresult = PKT_ALIAS_IGNORED; | ||||
| goto getout; | goto getout; | ||||
| } | } | ||||
| addr_save = GetDefaultAliasAddress(la); | addr_save = GetDefaultAliasAddress(la); | ||||
| if (la->packetAliasMode & PKT_ALIAS_UNREGISTERED_ONLY) { | if (la->packetAliasMode & PKT_ALIAS_UNREGISTERED_ONLY || | ||||
| la->packetAliasMode & PKT_ALIAS_UNREGISTERED_RFC6598) { | |||||
| u_long addr; | u_long addr; | ||||
| int iclass; | int iclass; | ||||
| iclass = 0; | iclass = 0; | ||||
| addr = ntohl(pip->ip_src.s_addr); | addr = ntohl(pip->ip_src.s_addr); | ||||
| if (addr >= UNREG_ADDR_C_LOWER && addr <= UNREG_ADDR_C_UPPER) | if (addr >= UNREG_ADDR_C_LOWER && addr <= UNREG_ADDR_C_UPPER) | ||||
| iclass = 3; | iclass = 3; | ||||
| else if (addr >= UNREG_ADDR_B_LOWER && addr <= UNREG_ADDR_B_UPPER) | else if (addr >= UNREG_ADDR_B_LOWER && addr <= UNREG_ADDR_B_UPPER) | ||||
| iclass = 2; | iclass = 2; | ||||
| else if (addr >= UNREG_ADDR_A_LOWER && addr <= UNREG_ADDR_A_UPPER) | else if (addr >= UNREG_ADDR_A_LOWER && addr <= UNREG_ADDR_A_UPPER) | ||||
| iclass = 1; | iclass = 1; | ||||
| else if (addr >= UNREG_ADDR_RFC6598_LOWER && addr <= UNREG_ADDR_RFC6598_UPPER && | |||||
| la->packetAliasMode & PKT_ALIAS_UNREGISTERED_RFC6598) | |||||
| iclass = 4; | |||||
| if (iclass == 0) { | if (iclass == 0) { | ||||
| SetDefaultAliasAddress(la, pip->ip_src); | SetDefaultAliasAddress(la, pip->ip_src); | ||||
| } | } | ||||
| } else if (la->packetAliasMode & PKT_ALIAS_PROXY_ONLY) { | } else if (la->packetAliasMode & PKT_ALIAS_PROXY_ONLY) { | ||||
| SetDefaultAliasAddress(la, pip->ip_src); | SetDefaultAliasAddress(la, pip->ip_src); | ||||
| } | } | ||||
| iresult = PKT_ALIAS_IGNORED; | iresult = PKT_ALIAS_IGNORED; | ||||
| ▲ Show 20 Lines • Show All 299 Lines • Show Last 20 Lines | |||||