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author | David Ahern <dsahern@gmail.com> | 2018-04-17 17:33:07 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2018-04-17 23:41:15 -0400 |
commit | a919525ad832d2bb1388b2303832a2307b30aeff (patch) | |
tree | c07aebe1fb80d8cc52d93efe877e7db7ca5fe13c /net/ipv4/fib_semantics.c | |
parent | a2d481b326c98b6b67eea8a378c858d57ca5ff3d (diff) | |
download | linux-a919525ad832d2bb1388b2303832a2307b30aeff.tar.gz linux-a919525ad832d2bb1388b2303832a2307b30aeff.tar.bz2 linux-a919525ad832d2bb1388b2303832a2307b30aeff.zip |
net: Move fib_convert_metrics to metrics file
Move logic of fib_convert_metrics into ip_metrics_convert. This allows
the code that converts netlink attributes into metrics struct to be
re-used in a later patch by IPv6.
This is mostly a code move with the following changes to variable names:
- fi->fib_net becomes net
- fc_mx and fc_mx_len are passed as inputs pulled from fib_config
- metrics array is passed as an input from fi->fib_metrics->metrics
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_semantics.c')
-rw-r--r-- | net/ipv4/fib_semantics.c | 43 |
1 files changed, 2 insertions, 41 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index c27122f01b87..6608db23f54b 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -1019,47 +1019,8 @@ static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc) static int fib_convert_metrics(struct fib_info *fi, const struct fib_config *cfg) { - bool ecn_ca = false; - struct nlattr *nla; - int remaining; - - if (!cfg->fc_mx) - return 0; - - nla_for_each_attr(nla, cfg->fc_mx, cfg->fc_mx_len, remaining) { - int type = nla_type(nla); - u32 val; - - if (!type) - continue; - if (type > RTAX_MAX) - return -EINVAL; - - if (type == RTAX_CC_ALGO) { - char tmp[TCP_CA_NAME_MAX]; - - nla_strlcpy(tmp, nla, sizeof(tmp)); - val = tcp_ca_get_key_by_name(fi->fib_net, tmp, &ecn_ca); - if (val == TCP_CA_UNSPEC) - return -EINVAL; - } else { - val = nla_get_u32(nla); - } - if (type == RTAX_ADVMSS && val > 65535 - 40) - val = 65535 - 40; - if (type == RTAX_MTU && val > 65535 - 15) - val = 65535 - 15; - if (type == RTAX_HOPLIMIT && val > 255) - val = 255; - if (type == RTAX_FEATURES && (val & ~RTAX_FEATURE_MASK)) - return -EINVAL; - fi->fib_metrics->metrics[type - 1] = val; - } - - if (ecn_ca) - fi->fib_metrics->metrics[RTAX_FEATURES - 1] |= DST_FEATURE_ECN_CA; - - return 0; + return ip_metrics_convert(fi->fib_net, cfg->fc_mx, cfg->fc_mx_len, + fi->fib_metrics->metrics); } struct fib_info *fib_create_info(struct fib_config *cfg, |