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https://github.com/systemd/systemd-stable.git
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fw_add_local_dnat: remove unused function arguments
All users pass a NULL/0 for those, things haven't changed since 2015 when this was added originally, so remove the arguments. THe paramters are re-added as local function variables, initalised to NULL or 0. A followup patch can then manually remove all if (NULL) rather than leaving dead-branch optimization to compiler. Reason for not doing it here is to ease patch review. Not requiring support for this will ease initial nftables backend implementation. In case a use-case comues up later this feature can be re-added.
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@ -100,9 +100,6 @@ int expose_port_flush(ExposePort* l, union in_addr_union *exposed) {
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r = fw_add_local_dnat(false,
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af,
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p->protocol,
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NULL,
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NULL, 0,
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NULL, 0,
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p->host_port,
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exposed,
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p->container_port,
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@ -156,9 +153,6 @@ int expose_port_execute(sd_netlink *rtnl, ExposePort *l, union in_addr_union *ex
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r = fw_add_local_dnat(true,
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af,
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p->protocol,
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NULL,
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NULL, 0,
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NULL, 0,
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p->host_port,
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&new_exposed,
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p->container_port,
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@ -158,11 +158,6 @@ int fw_add_local_dnat(
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bool add,
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int af,
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int protocol,
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const char *in_interface,
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const union in_addr_union *source,
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unsigned source_prefixlen,
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const union in_addr_union *destination,
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unsigned destination_prefixlen,
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uint16_t local_port,
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const union in_addr_union *remote,
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uint16_t remote_port,
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@ -177,6 +172,11 @@ int fw_add_local_dnat(
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struct nf_nat_ipv4_multi_range_compat *mr;
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size_t sz, msz;
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int r;
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const char *in_interface = NULL;
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const union in_addr_union *source = NULL;
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unsigned source_prefixlen = 0;
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const union in_addr_union *destination = NULL;
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unsigned destination_prefixlen = 0;
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assert(add || !previous_remote);
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@ -22,11 +22,6 @@ int fw_add_local_dnat(
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bool add,
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int af,
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int protocol,
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const char *in_interface,
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const union in_addr_union *source,
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unsigned source_prefixlen,
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const union in_addr_union *destination,
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unsigned destination_prefixlen,
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uint16_t local_port,
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const union in_addr_union *remote,
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uint16_t remote_port,
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@ -50,11 +45,6 @@ static inline int fw_add_local_dnat(
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bool add,
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int af,
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int protocol,
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const char *in_interface,
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const union in_addr_union *source,
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unsigned source_prefixlen,
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const union in_addr_union *destination,
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unsigned destination_prefixlen,
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uint16_t local_port,
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const union in_addr_union *remote,
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uint16_t remote_port,
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@ -22,19 +22,19 @@ int main(int argc, char *argv[]) {
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if (r < 0)
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log_error_errno(r, "Failed to modify firewall: %m");
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r = fw_add_local_dnat(true, AF_INET, IPPROTO_TCP, NULL, NULL, 0, NULL, 0, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 4), 815, NULL);
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r = fw_add_local_dnat(true, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 4), 815, NULL);
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if (r < 0)
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log_error_errno(r, "Failed to modify firewall: %m");
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r = fw_add_local_dnat(true, AF_INET, IPPROTO_TCP, NULL, NULL, 0, NULL, 0, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 4), 815, NULL);
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r = fw_add_local_dnat(true, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 4), 815, NULL);
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if (r < 0)
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log_error_errno(r, "Failed to modify firewall: %m");
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r = fw_add_local_dnat(true, AF_INET, IPPROTO_TCP, NULL, NULL, 0, NULL, 0, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 5), 815, &MAKE_IN_ADDR_UNION(1, 2, 3, 4));
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r = fw_add_local_dnat(true, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 5), 815, &MAKE_IN_ADDR_UNION(1, 2, 3, 4));
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if (r < 0)
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log_error_errno(r, "Failed to modify firewall: %m");
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r = fw_add_local_dnat(false, AF_INET, IPPROTO_TCP, NULL, NULL, 0, NULL, 0, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 5), 815, NULL);
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r = fw_add_local_dnat(false, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 5), 815, NULL);
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if (r < 0)
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log_error_errno(r, "Failed to modify firewall: %m");
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