* add NFACCT_SNPRINTF_F_SAVE plaintext template, allowing printing of
accounting objects in a format suitable for the 'restore' command.
All nfacct properties are listed as name=value pairs, properly encoding space
and other "odd" characters when needed. Example:
name="ALL IN net 17" pkts=1234 bytes=3456789
Signed-off-by: Michael Zintakis <michael.zintakis@xxxxxxxxxxxxxx>
---
include/libnetfilter_acct/libnetfilter_acct.h | 3 +++
src/libnetfilter_acct.c | 11 +++++++++++
2 files changed, 14 insertions(+)
diff --git a/include/libnetfilter_acct/libnetfilter_acct.h b/include/libnetfilter_acct/libnetfilter_acct.h
index 9f66c39..ecf8280 100644
--- a/include/libnetfilter_acct/libnetfilter_acct.h
+++ b/include/libnetfilter_acct/libnetfilter_acct.h
@@ -39,6 +39,9 @@ int nfacct_nlmsg_parse_payload(const struct nlmsghdr *nlh, struct nfacct *nfacct
#define NFACCT_SNPRINTF_F_FULL (1 << 0)
#define NFACCT_SNPRINTF_F_TIME (1 << 1)
+/* print in a format suitable for 'restore' */
+#define NFACCT_SNPRINTF_F_SAVE (1 << 2)
+
#define NFACCT_SNPRINTF_T_PLAIN 0
#define NFACCT_SNPRINTF_T_XML 1
diff --git a/src/libnetfilter_acct.c b/src/libnetfilter_acct.c
index 493be3b..e4fdf84 100644
--- a/src/libnetfilter_acct.c
+++ b/src/libnetfilter_acct.c
@@ -228,6 +228,9 @@ uint64_t nfacct_attr_get_u64(struct nfacct *nfacct, enum nfacct_attr_type type)
}
EXPORT_SYMBOL(nfacct_attr_get_u64);
+#define NFACCT_STR_PLAIN_SAVE_BASE "name=%s pkts=%"PRIu64 \
+ " bytes=%"PRIu64
+
void
parse_nfacct_name(char *buf, const char *name)
{
@@ -321,12 +324,20 @@ nfacct_snprintf_plain(char *buf, size_t rem, struct nfacct *nfacct,
parse_nfacct_name(nfacct_name,
nfacct_attr_get_str(nfacct, NFACCT_ATTR_NAME));
if (flags & NFACCT_SNPRINTF_F_FULL) {
+ /* default: print pkts + bytes + name */
ret = snprintf(buf, rem,
"{ pkts = %.20"PRIu64", bytes = %.20"PRIu64" } = %s;",
nfacct_attr_get_u64(nfacct, NFACCT_ATTR_PKTS),
nfacct_attr_get_u64(nfacct, NFACCT_ATTR_BYTES),
nfacct_name);
+ } else if (flags & NFACCT_SNPRINTF_F_SAVE) {
+ /* save: format useful for 'restore' */
+ ret = snprintf(buf, rem, NFACCT_STR_PLAIN_SAVE_BASE,
+ nfacct_name,
+ nfacct_attr_get_u64(nfacct,NFACCT_ATTR_PKTS),
+ nfacct_attr_get_u64(nfacct,NFACCT_ATTR_BYTES));
} else {
+ /* print out name only */
ret = snprintf(buf, rem, "%s\n", nfacct_name);
}
--
1.8.3.1
--
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