Add support for reading proto id/name mappings from rt_protos.d directory. Allows users to have custom protocol values converted to human friendly names.
Each file under rt_protos.d has the 'id name' format used by rt_protos. Only .conf files are read and parsed. Signed-off-by: David Ahern <[email protected]> --- etc/iproute2/rt_protos.d/README | 3 +++ lib/rt_names.c | 27 +++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) create mode 100644 etc/iproute2/rt_protos.d/README diff --git a/etc/iproute2/rt_protos.d/README b/etc/iproute2/rt_protos.d/README new file mode 100644 index 000000000000..723509ce56b6 --- /dev/null +++ b/etc/iproute2/rt_protos.d/README @@ -0,0 +1,3 @@ +Each file in this directory is an rt_protos configuration file. iproute2 +commands scan this directory processing all files that end in '.conf'. + diff --git a/lib/rt_names.c b/lib/rt_names.c index c66cb1e439e3..7553288eeb18 100644 --- a/lib/rt_names.c +++ b/lib/rt_names.c @@ -142,9 +142,36 @@ static int rtnl_rtprot_init; static void rtnl_rtprot_initialize(void) { + struct dirent *de; + DIR *d; + rtnl_rtprot_init = 1; rtnl_tab_initialize(CONFDIR "/rt_protos", rtnl_rtprot_tab, 256); + + d = opendir(CONFDIR "/rt_protos.d"); + if (!d) + return; + + while ((de = readdir(d)) != NULL) { + char path[PATH_MAX]; + size_t len; + + if (*de->d_name == '.') + continue; + + /* only consider filenames ending in '.conf' */ + len = strlen(de->d_name); + if (len <= 5) + continue; + if (strcmp(de->d_name + len - 5, ".conf")) + continue; + + snprintf(path, sizeof(path), CONFDIR "/rt_protos.d/%s", + de->d_name); + rtnl_tab_initialize(path, rtnl_rtprot_tab, 256); + } + closedir(d); } const char *rtnl_rtprot_n2a(int id, char *buf, int len) -- 2.1.4
