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authorDavid Ahern <dsa@cumulusnetworks.com>2015-11-24 13:20:01 -0800
committerStephen Hemminger <shemming@brocade.com>2015-11-29 11:29:31 -0800
commit13ada95da4f05df5993ca332358fa3f2f3a21047 (patch)
tree02c09a2a7d490d0677b88de62be15065398a971b
parent906ac5437ab8e1e5f8514afe62bf01e1ff3906af (diff)
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Add support for rt_tables.d
Add support for reading table id/name mappings from rt_tables.d directory. Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
-rw-r--r--etc/iproute2/rt_tables.d/README3
-rw-r--r--lib/rt_names.c26
2 files changed, 29 insertions, 0 deletions
diff --git a/etc/iproute2/rt_tables.d/README b/etc/iproute2/rt_tables.d/README
new file mode 100644
index 0000000..79386f8
--- /dev/null
+++ b/etc/iproute2/rt_tables.d/README
@@ -0,0 +1,3 @@
+Each file in this directory is an rt_tables 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 e87c65d..f68e91d 100644
--- a/lib/rt_names.c
+++ b/lib/rt_names.c
@@ -17,6 +17,7 @@
#include <string.h>
#include <sys/time.h>
#include <sys/socket.h>
+#include <dirent.h>
#include <asm/types.h>
#include <linux/rtnetlink.h>
@@ -339,6 +340,8 @@ static int rtnl_rttable_init;
static void rtnl_rttable_initialize(void)
{
+ struct dirent *de;
+ DIR *d;
int i;
rtnl_rttable_init = 1;
@@ -348,6 +351,29 @@ static void rtnl_rttable_initialize(void)
}
rtnl_hash_initialize(CONFDIR "/rt_tables",
rtnl_rttable_hash, 256);
+
+ d = opendir(CONFDIR "/rt_tables.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_tables.d/%s", de->d_name);
+ rtnl_hash_initialize(path, rtnl_rttable_hash, 256);
+ }
+ closedir(d);
}
const char * rtnl_rttable_n2a(__u32 id, char *buf, int len)