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nixos: add support for Ubuntu Fan Networking

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This provides support for Ubuntu Fan Networking [1].

This includes:

* The fanctl package, and a corresponding NixOS service.
* iproute patches.
* kernel patches.

closes #9188

1: https://wiki.ubuntu.com/FanNetworking
This commit is contained in:
Charles Strahan
2015-08-13 14:27:14 -04:00
parent 18597ff658
commit c1ee8fefd4
9 changed files with 1523 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkgs/os-specific/linux/iproute/default.nix
+5 -1
View File
@@ -1,4 +1,6 @@
{ fetchurl, stdenv, flex, bison, db, iptables, pkgconfig }:
{ fetchurl, stdenv, lib, flex, bison, db, iptables, pkgconfig
, enableFan ? false
}:
stdenv.mkDerivation rec {
name = "iproute2-4.1.1";
@@ -8,6 +10,8 @@ stdenv.mkDerivation rec {
sha256 = "0vz6m2k6hdrjlg4x0r3cd75lg9ysmndbsp35pm8494zvksc7l1vk";
};
patches = lib.optionals enableFan [ ./ubuntu-fan.patch ];
preConfigure = ''
patchShebangs ./configure
sed -e '/ARPDDIR/d' -i Makefile
pkgs/os-specific/linux/iproute/ubuntu-fan.patch
+164
View File
@@ -0,0 +1,164 @@
This provides support for Ubuntu's Fan Networking [1].
These patches were pulled from:
https://code.launchpad.net/~ubuntu-branches/ubuntu/vivid/iproute2/vivid-proposed
See revisions 18 and 19.
[1] https://wiki.ubuntu.com/FanNetworking
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 102ce7a..7b8f0e5 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -57,6 +57,9 @@ enum {
IFLA_IPTUN_ENCAP_FLAGS,
IFLA_IPTUN_ENCAP_SPORT,
IFLA_IPTUN_ENCAP_DPORT,
+
+ IFLA_IPTUN_FAN_UNDERLAY = 32,
+ IFLA_IPTUN_FAN_MAP = 33,
__IFLA_IPTUN_MAX,
};
#define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1)
@@ -131,4 +134,20 @@ enum {
};
#define IFLA_VTI_MAX (__IFLA_VTI_MAX - 1)
+
+enum {
+ IFLA_FAN_UNSPEC,
+ IFLA_FAN_MAPPING,
+ __IFLA_FAN_MAX,
+};
+
+#define IFLA_FAN_MAX (__IFLA_FAN_MAX - 1)
+
+struct ip_tunnel_fan_map {
+ __be32 underlay;
+ __be32 overlay;
+ __u16 underlay_prefix;
+ __u16 overlay_prefix;
+};
+
#endif /* _IF_TUNNEL_H_ */
diff --git a/ip/link_iptnl.c b/ip/link_iptnl.c
index 9d6bc98..ec3f05d 100644
--- a/ip/link_iptnl.c
+++ b/ip/link_iptnl.c
@@ -49,6 +49,42 @@ static void usage(int sit)
print_usage(stderr, sit);
exit(-1);
}
+static int fan_parse_map(int *argcp, char ***argvp, struct nlmsghdr *n)
+{
+ inet_prefix underlay, overlay;
+ struct ip_tunnel_fan_map map;
+ struct rtattr *nest;
+ char **argv = *argvp;
+ int argc = *argcp;
+
+ nest = addattr_nest(n, 1024, IFLA_IPTUN_FAN_MAP);
+ while (argc > 0) {
+ char *colon = strchr(*argv, ':');
+
+ if (!colon)
+ break;
+ *colon = '\0';
+
+ if (get_prefix(&overlay, *argv, AF_INET))
+ invarg("invalid fan-map overlay", *argv);
+ if (get_prefix(&underlay, colon + 1, AF_INET))
+ invarg("invalid fan-map underlay", colon + 1);
+
+ memcpy(&map.underlay, underlay.data, 4);
+ map.underlay_prefix = underlay.bitlen;
+ memcpy(&map.overlay, overlay.data, 4);
+ map.overlay_prefix = overlay.bitlen;
+
+ argc--, argv++;
+
+ addattr_l(n, 1024, IFLA_FAN_MAPPING, &map, sizeof(map));
+ }
+ addattr_nest_end(n, nest);
+
+ *argcp = argc;
+ *argvp = argv;
+ return 0;
+}
static int iptunnel_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
@@ -66,6 +102,7 @@ static int iptunnel_parse_opt(struct link_util *lu, int argc, char **argv,
__u32 link = 0;
__u32 laddr = 0;
__u32 raddr = 0;
+ __u32 underlay = 0;
__u8 ttl = 0;
__u8 tos = 0;
__u8 pmtudisc = 1;
@@ -174,6 +211,13 @@ get_failed:
raddr = get_addr32(*argv);
else
raddr = 0;
+ } else if (strcmp(*argv, "underlay") == 0) {
+ NEXT_ARG();
+ underlay = get_addr32(*argv);
+ } else if (strcmp(*argv, "fan-map") == 0) {
+ NEXT_ARG();
+ if (fan_parse_map(&argc, &argv, n))
+ invarg("invalid fan-map", *argv);
} else if (strcmp(*argv, "local") == 0) {
NEXT_ARG();
if (strcmp(*argv, "any"))
@@ -318,9 +362,32 @@ get_failed:
}
}
+ if (underlay)
+ addattr32(n, 1024, IFLA_IPTUN_FAN_UNDERLAY, underlay);
+
return 0;
}
+static void fan_print_map(FILE *f, struct rtattr *attr)
+{
+ char b1[INET_ADDRSTRLEN], b2[INET_ADDRSTRLEN];
+ struct ip_tunnel_fan_map *m;
+ struct rtattr *i;
+ int rem;
+
+ fprintf(f, "fan-map ");
+
+ rem = RTA_PAYLOAD(attr);
+ for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
+ m = RTA_DATA(i);
+ fprintf(f, "%s/%d:%s/%d ",
+ rt_addr_n2a(AF_INET, sizeof(m->overlay), &m->overlay, b1, INET_ADDRSTRLEN),
+ m->overlay_prefix,
+ rt_addr_n2a(AF_INET, sizeof(m->overlay), &m->underlay, b2, INET_ADDRSTRLEN),
+ m->underlay_prefix);
+ }
+}
+
static void iptunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
char s1[1024];
@@ -349,6 +416,17 @@ static void iptunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[
fprintf(f, "local %s ", local);
+ if (tb[IFLA_IPTUN_FAN_UNDERLAY]) {
+ unsigned addr = rta_getattr_u32(tb[IFLA_IPTUN_FAN_UNDERLAY]);
+
+ if (addr)
+ fprintf(f, "underlay %s ",
+ format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
+ }
+
+ if (tb[IFLA_IPTUN_FAN_MAP])
+ fan_print_map(f, tb[IFLA_IPTUN_FAN_MAP]);
+
if (tb[IFLA_IPTUN_LINK] && rta_getattr_u32(tb[IFLA_IPTUN_LINK])) {
unsigned link = rta_getattr_u32(tb[IFLA_IPTUN_LINK]);
const char *n = if_indextoname(link, s2);