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author | David Gibson <david@gibson.dropbear.id.au> | 2024-08-21 14:19:57 +1000 |
---|---|---|
committer | Stefano Brivio <sbrivio@redhat.com> | 2024-08-21 11:59:29 +0200 |
commit | e6feb5a892b4efc2b149883f58915154d6eb349f (patch) | |
tree | a7f912dad260d2a5c14ffdbf7aaed62283d6e3de /fwd.c | |
parent | 32c386834dd6a30be60f8b90a8d5a17988c91997 (diff) | |
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treewide: Use "our address" instead of "forwarding address"
The term "forwarding address" to indicate the local-to-passt address was
well-intentioned, but ends up being kinda confusing. As discussed on a
recent call, let's try "our" instead.
(While we're there correct an error in flow_initiate_af()s comments where
we referred to parameters by the wrong name).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'fwd.c')
-rw-r--r-- | fwd.c | 70 |
1 files changed, 35 insertions, 35 deletions
@@ -167,7 +167,7 @@ void fwd_scan_ports_init(struct ctx *c) static bool is_dns_flow(uint8_t proto, const struct flowside *ini) { return ((proto == IPPROTO_UDP) || (proto == IPPROTO_TCP)) && - ((ini->fport == 53) || (ini->fport == 853)); + ((ini->oport == 53) || (ini->oport == 853)); } /** @@ -184,33 +184,33 @@ uint8_t fwd_nat_from_tap(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt) { if (is_dns_flow(proto, ini) && - inany_equals4(&ini->faddr, &c->ip4.dns_match)) + inany_equals4(&ini->oaddr, &c->ip4.dns_match)) tgt->eaddr = inany_from_v4(c->ip4.dns_host); else if (is_dns_flow(proto, ini) && - inany_equals6(&ini->faddr, &c->ip6.dns_match)) + inany_equals6(&ini->oaddr, &c->ip6.dns_match)) tgt->eaddr.a6 = c->ip6.dns_host; - else if (!c->no_map_gw && inany_equals4(&ini->faddr, &c->ip4.gw)) + else if (!c->no_map_gw && inany_equals4(&ini->oaddr, &c->ip4.gw)) tgt->eaddr = inany_loopback4; - else if (!c->no_map_gw && inany_equals6(&ini->faddr, &c->ip6.gw)) + else if (!c->no_map_gw && inany_equals6(&ini->oaddr, &c->ip6.gw)) tgt->eaddr = inany_loopback6; else - tgt->eaddr = ini->faddr; + tgt->eaddr = ini->oaddr; - tgt->eport = ini->fport; + tgt->eport = ini->oport; /* The relevant addr_out controls the host side source address. This * may be unspecified, which allows the kernel to pick an address. */ if (inany_v4(&tgt->eaddr)) - tgt->faddr = inany_from_v4(c->ip4.addr_out); + tgt->oaddr = inany_from_v4(c->ip4.addr_out); else - tgt->faddr.a6 = c->ip6.addr_out; + tgt->oaddr.a6 = c->ip6.addr_out; /* Let the kernel pick a host side source port */ - tgt->fport = 0; + tgt->oport = 0; if (proto == IPPROTO_UDP) { /* But for UDP we preserve the source port */ - tgt->fport = ini->eport; + tgt->oport = ini->eport; } return PIF_HOST; @@ -230,13 +230,13 @@ uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt) { if (!inany_is_loopback(&ini->eaddr) || - (!inany_is_loopback(&ini->faddr) && !inany_is_unspecified(&ini->faddr))) { + (!inany_is_loopback(&ini->oaddr) && !inany_is_unspecified(&ini->oaddr))) { char estr[INANY_ADDRSTRLEN], fstr[INANY_ADDRSTRLEN]; debug("Non loopback address on %s: [%s]:%hu -> [%s]:%hu", pif_name(PIF_SPLICE), inany_ntop(&ini->eaddr, estr, sizeof(estr)), ini->eport, - inany_ntop(&ini->faddr, fstr, sizeof(fstr)), ini->fport); + inany_ntop(&ini->oaddr, fstr, sizeof(fstr)), ini->oport); return PIF_NONE; } @@ -248,20 +248,20 @@ uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto, /* Preserve the specific loopback adddress used, but let the kernel pick * a source port on the target side */ - tgt->faddr = ini->eaddr; - tgt->fport = 0; + tgt->oaddr = ini->eaddr; + tgt->oport = 0; - tgt->eport = ini->fport; + tgt->eport = ini->oport; if (proto == IPPROTO_TCP) tgt->eport += c->tcp.fwd_out.delta[tgt->eport]; else if (proto == IPPROTO_UDP) tgt->eport += c->udp.fwd_out.delta[tgt->eport]; /* Let the kernel pick a host side source port */ - tgt->fport = 0; + tgt->oport = 0; if (proto == IPPROTO_UDP) /* But for UDP preserve the source port */ - tgt->fport = ini->eport; + tgt->oport = ini->eport; return PIF_HOST; } @@ -280,7 +280,7 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt) { /* Common for spliced and non-spliced cases */ - tgt->eport = ini->fport; + tgt->eport = ini->oport; if (proto == IPPROTO_TCP) tgt->eport += c->tcp.fwd_in.delta[tgt->eport]; else if (proto == IPPROTO_UDP) @@ -293,11 +293,11 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto, /* Preserve the specific loopback adddress used, but let the * kernel pick a source port on the target side */ - tgt->faddr = ini->eaddr; - tgt->fport = 0; + tgt->oaddr = ini->eaddr; + tgt->oport = 0; if (proto == IPPROTO_UDP) /* But for UDP preserve the source port */ - tgt->fport = ini->eport; + tgt->oport = ini->eport; if (inany_v4(&ini->eaddr)) tgt->eaddr = inany_loopback4; @@ -307,26 +307,26 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto, return PIF_SPLICE; } - tgt->faddr = ini->eaddr; - tgt->fport = ini->eport; + tgt->oaddr = ini->eaddr; + tgt->oport = ini->eport; - if (inany_is_loopback4(&tgt->faddr) || - inany_is_unspecified4(&tgt->faddr) || - inany_equals4(&tgt->faddr, &c->ip4.addr_seen)) { - tgt->faddr = inany_from_v4(c->ip4.gw); - } else if (inany_is_loopback6(&tgt->faddr) || - inany_equals6(&tgt->faddr, &c->ip6.addr_seen) || - inany_equals6(&tgt->faddr, &c->ip6.addr)) { + if (inany_is_loopback4(&tgt->oaddr) || + inany_is_unspecified4(&tgt->oaddr) || + inany_equals4(&tgt->oaddr, &c->ip4.addr_seen)) { + tgt->oaddr = inany_from_v4(c->ip4.gw); + } else if (inany_is_loopback6(&tgt->oaddr) || + inany_equals6(&tgt->oaddr, &c->ip6.addr_seen) || + inany_equals6(&tgt->oaddr, &c->ip6.addr)) { if (IN6_IS_ADDR_LINKLOCAL(&c->ip6.gw)) - tgt->faddr.a6 = c->ip6.gw; + tgt->oaddr.a6 = c->ip6.gw; else - tgt->faddr.a6 = c->ip6.addr_ll; + tgt->oaddr.a6 = c->ip6.addr_ll; } - if (inany_v4(&tgt->faddr)) { + if (inany_v4(&tgt->oaddr)) { tgt->eaddr = inany_from_v4(c->ip4.addr_seen); } else { - if (inany_is_linklocal6(&tgt->faddr)) + if (inany_is_linklocal6(&tgt->oaddr)) tgt->eaddr.a6 = c->ip6.addr_ll_seen; else tgt->eaddr.a6 = c->ip6.addr_seen; |