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Added case-insensitive substring matching

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This commit is contained in:
Luca Deri 2020-08-10 19:36:43 +02:00
parent 95dfbdc64a
commit dfa9dd66c0
2 changed files with 13 additions and 3 deletions
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15
src/lib/ndpi_main.c
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@ -2591,11 +2591,17 @@ int ndpi_handle_rule(struct ndpi_detection_module_struct *ndpi_str, char *rule,
is_ip = 1, value = &attr[3];
else if(strncmp(attr, "host:", 5) == 0) {
/* host:"<value>",host:"<value>",.....@<subproto> */
u_int i, max_len;
value = &attr[5];
if(value[0] == '"')
value++; /* remove leading " */
if(value[strlen(value) - 1] == '"')
value[strlen(value) - 1] = '\0'; /* remove trailing " */
max_len = strlen(value) - 1;
if(value[max_len] == '"')
value[max_len] = '\0'; /* remove trailing " */
for(i=0; i<max_len; i++) value[i] = tolower(value[i]);
}
if(is_tcp || is_udp) {
@ -6105,7 +6111,7 @@ u_int16_t ndpi_match_host_subprotocol(struct ndpi_detection_module_struct *ndpi_
int ndpi_match_hostname_protocol(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow,
u_int16_t master_protocol, char *name, u_int name_len) {
ndpi_protocol_match_result ret_match;
u_int16_t subproto, what_len;
u_int16_t subproto, what_len, i;
char *what;
if((name_len > 2) && (name[0] == '*') && (name[1] == '.'))
@ -6113,6 +6119,9 @@ int ndpi_match_hostname_protocol(struct ndpi_detection_module_struct *ndpi_struc
else
what = name, what_len = name_len;
/* Convert it first to lowercase: we assume meory is writable as in nDPI dissctors */
for(i=0; i<name_len; i++) what[i] = tolower(what[i]);
subproto = ndpi_match_host_subprotocol(ndpi_struct, flow, what, what_len, &ret_match, master_protocol);
if(subproto != NDPI_PROTOCOL_UNKNOWN) {