[PATCH] examples/ipsec-secgw: fix ip address parsing

[PATCH] examples/ipsec-secgw: fix ip address parsing

[Kirill Rybalchenko]

In strlcpy function parameters there was no allowance for
null terminator, so ip address was copied without last character.

Fixes: ae943ebe1ed3 ("examples/ipsec-secgw: replace strncpy with strlcpy")

Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
---
 examples/ipsec-secgw/parser.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/examples/ipsec-secgw/parser.c b/examples/ipsec-secgw/parser.c
index e2e3429..91282ca 100644
--- a/examples/ipsec-secgw/parser.c
+++ b/examples/ipsec-secgw/parser.c
@@ -213,8 +213,9 @@ parse_ipv4_addr(const char *token, struct in_addr *ipv4, uint32_t *mask)
 
 	pch = strchr(token, '/');
 	if (pch != NULL) {
-		strlcpy(ip_str, token, RTE_MIN((unsigned int long)(pch - token),
-					sizeof(ip_str)));
+		strlcpy(ip_str, token,
+			RTE_MIN((unsigned int long)(pch - token + 1),
+			sizeof(ip_str)));
 		pch += 1;
 		if (is_str_num(pch) != 0)
 			return -EINVAL;
@@ -225,7 +226,6 @@ parse_ipv4_addr(const char *token, struct in_addr *ipv4, uint32_t *mask)
 		if (mask)
 			*mask = 0;
 	}
-
 	if (strlen(ip_str) >= INET_ADDRSTRLEN)
 		return -EINVAL;
 
@@ -243,7 +243,8 @@ parse_ipv6_addr(const char *token, struct in6_addr *ipv6, uint32_t *mask)
 
 	pch = strchr(token, '/');
 	if (pch != NULL) {
-		strlcpy(ip_str, token, RTE_MIN((unsigned int long)(pch - token),
+		strlcpy(ip_str, token,
+			RTE_MIN((unsigned int long)(pch - token + 1),
 					sizeof(ip_str)));
 		pch += 1;
 		if (is_str_num(pch) != 0)
-- 
2.5.5

Re: [PATCH] examples/ipsec-secgw: fix ip address parsing

[De Lara Guarch, Pablo]

> -----Original Message-----
> From: Rybalchenko, Kirill
> Sent: Monday, May 14, 2018 11:01 AM
> To: dev@dpdk.org
> Cc: stable@dpdk.org; Rybalchenko, Kirill <kirill.rybalchenko@intel.com>;
> Nicolau, Radu <radu.nicolau@intel.com>; akhil.goyal@nxp.com; Zhang, Roy Fan
> <roy.fan.zhang@intel.com>; Pattan, Reshma <reshma.pattan@intel.com>; De
> Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Subject: [PATCH] examples/ipsec-secgw: fix ip address parsing
> 
> In strlcpy function parameters there was no allowance for null terminator, so ip
> address was copied without last character.
> 
> Fixes: ae943ebe1ed3 ("examples/ipsec-secgw: replace strncpy with strlcpy")
> 
> Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>

Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

This is fixing a fix that is going into stable, so it needs to go too.
Thomas, could you add "Cc: stable@dpdk.org" when applying this?

Thanks,
Pablo

Re: [PATCH] examples/ipsec-secgw: fix ip address parsing

[Thomas Monjalon]

> > In strlcpy function parameters there was no allowance for null terminator, so ip
> > address was copied without last character.
> > 
> > Fixes: ae943ebe1ed3 ("examples/ipsec-secgw: replace strncpy with strlcpy")
> > 
> > Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
> 
> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> 
> This is fixing a fix that is going into stable, so it needs to go too.
> Thomas, could you add "Cc: stable@dpdk.org" when applying this?

Applied, thanks