vrr/nDPI
2
0
Fork 0
mirror of https://github.com/vel21ripn/nDPI.git synced 2026-05-06 03:45:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

Added null pointer checks

Browse source
This commit is contained in:
Luca 2022-07-14 18:04:51 +02:00
parent 842e0a3648
commit b80218a0e4
1 changed files with 24 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

42
src/lib/ndpi_utils.c
View file

@ -2182,16 +2182,18 @@ static u_int64_t ndpi_host_ip_risk_ptree_match(struct ndpi_detection_module_stru
/* Check isuerDN exception */
u_int8_t ndpi_check_issuerdn_risk_exception(struct ndpi_detection_module_struct *ndpi_str,
char *issuerDN) {
ndpi_list *head = ndpi_str->trusted_issuer_dn;
if(issuerDN != NULL) {
ndpi_list *head = ndpi_str->trusted_issuer_dn;
while(head != NULL) {
if(strcmp(issuerDN, head->value) == 0)
return(1); /* This is a trusted DN */
else
head = head->next;
}
}
return(0 /* no exception */);
return(0 /* no exception */);
}
/* ********************************************************************************* */
@ -2200,23 +2202,27 @@ u_int8_t ndpi_check_issuerdn_risk_exception(struct ndpi_detection_module_struct
static u_int8_t ndpi_check_hostname_risk_exception(struct ndpi_detection_module_struct *ndpi_str,
struct ndpi_flow_struct *flow,
char *hostname) {
ndpi_automa *automa = &ndpi_str->host_risk_mask_automa;
u_int8_t ret = 0;
if(automa->ac_automa) {
AC_TEXT_t ac_input_text;
AC_REP_t match;
if(hostname == NULL)
return(0);
else {
ndpi_automa *automa = &ndpi_str->host_risk_mask_automa;
u_int8_t ret = 0;
ac_input_text.astring = hostname, ac_input_text.length = strlen(hostname);
ac_input_text.option = 0;
if(ac_automata_search(automa->ac_automa, &ac_input_text, &match) > 0) {
if(flow) flow->risk_mask &= match.number64;
ret = 1;
if(automa->ac_automa) {
AC_TEXT_t ac_input_text;
AC_REP_t match;
ac_input_text.astring = hostname, ac_input_text.length = strlen(hostname);
ac_input_text.option = 0;
if(ac_automata_search(automa->ac_automa, &ac_input_text, &match) > 0) {
if(flow) flow->risk_mask &= match.number64;
ret = 1;
}
}
return(ret);
}
return(ret);
}
/* ********************************************************************************* */
@ -2236,7 +2242,7 @@ static u_int8_t ndpi_check_ipv4_exception(struct ndpi_detection_module_struct *n
return((r != (u_int64_t)-1) ? 1 : 0);
}
/* ********************************************************************************* */
/* ********************************************************************************* */
static void ndpi_handle_risk_exceptions(struct ndpi_detection_module_struct *ndpi_str,
struct ndpi_flow_struct *flow) {