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fix netift

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This commit is contained in:
suyuan168 2022-04-06 20:55:49 +08:00
parent b76bbb581c
commit 5930a09dfc
38 changed files with 1918 additions and 68 deletions
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35
netifd/patches/050-ipv4-address-validation.patch Normal file
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@ -0,0 +1,35 @@
diff -Nur a/utils.c netifd-2019-08-05-5e02f944/utils.c
--- a/utils.c 2020-06-04 11:54:37.287682451 -0700
+++ netifd-2019-08-05-5e02f944/utils.c 2020-06-04 11:58:41.782809397 -0700
@@ -118,9 +118,11 @@
int
parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
{
- char *astr = alloca(strlen(str) + 1);
+ int len = strlen(str) + 1;
+ char *astr = alloca(len);
+ int ret = 0;
- strcpy(astr, str);
+ strncpy(astr, str, len);
if (!split_netmask(astr, netmask, af == AF_INET6))
return 0;
@@ -132,7 +134,16 @@
return 0;
}
- return inet_pton(af, astr, addr);
+ ret = inet_pton(af, astr, addr);
+ if ((ret > 0) && (af == AF_INET)) {
+ struct in_addr *ip4_addr = (struct in_addr *)addr;
+ uint32_t host_addr = ntohl(ip4_addr->s_addr);
+
+ if (!IN_CLASSA(host_addr) && !IN_CLASSB(host_addr) && !IN_CLASSC(host_addr)) {
+ ret = 0;
+ }
+ }
+ return ret;
}
char *