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datastorage: improve linked list

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- Simplify linked list search - code was unnecessarily complex for no benefit
- Adjust some MAC address handling to simplify code

[cleanup commit message]
Signed-off-by: Nick Hainke <vincent@systemli.org>
This commit is contained in:
Ian Clowes 2022-01-31 10:51:29 +00:00 • committed by Nick Hainke
parent 160ccf8917
commit 6e03e37ce8
6 changed files with 53 additions and 131 deletions
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21
src/utils/ubus.c
View file

@ -368,7 +368,7 @@ bool discard_entry = true;
if (dawn_metric.eval_auth_req <= 0) {
dawnlog_trace("Allow authentication due to not evaluating requests");
}
else if (mac_in_maclist(auth_req->client_addr)) {
else if (mac_find_entry(auth_req->client_addr)) {
dawnlog_trace("Allow authentication due to mac_in_maclist()");
}
else {
@ -389,12 +389,6 @@ bool discard_entry = true;
dawnlog_trace("Deny authentication due to no probe entry");
deny_request = 1;
}
#if 0
// Already know this is false from outer test above
else if (mac_in_maclist(probe_req_updated->client_addr)) {
dawnlog_trace("Short cut due to mac_in_maclist()");
}
#endif
else if (tmp->counter < dawn_metric.min_probe_count) {
dawnlog_trace("Deny authentication due to low probe count");
deny_request = 1;
@ -447,7 +441,7 @@ int discard_entry = true;
if (dawn_metric.eval_assoc_req <= 0) {
dawnlog_trace("Allow association due to not evaluating requests");
}
else if (mac_in_maclist(assoc_req->client_addr)) {
else if (mac_find_entry(assoc_req->client_addr)) {
dawnlog_trace("Allow association due to mac_in_maclist()");
} else {
pthread_mutex_lock(&probe_array_mutex);
@ -467,12 +461,6 @@ int discard_entry = true;
dawnlog_trace("Deny association due to no probe entry found");
deny_request = 1;
}
#if 0
// Already know this is false from outer test above
else if (mac_in_maclist(tmp->client_addr)) {
dawnlog_trace("Allow due to mac_in_maclist()");
}
#endif
else if (tmp->counter < dawn_metric.min_probe_count) {
dawnlog_trace("Deny association due to low probe count");
deny_request = 1;
@ -539,7 +527,7 @@ static int handle_probe_req(struct blob_attr* msg) {
if (dawn_metric.eval_probe_req <= 0) {
dawnlog_trace("Allow probe due to not evaluating requests");
}
else if (mac_in_maclist(probe_req_updated->client_addr)) {
else if (mac_find_entry(probe_req_updated->client_addr)) {
dawnlog_trace("Allow probe due to mac_in_maclist()");
}
else if (probe_req_updated->counter < dawn_metric.min_probe_count) {
@ -1295,7 +1283,8 @@ int parse_add_mac_to_file(struct blob_attr *msg) {
struct dawn_mac addr;
hwaddr_aton(blobmsg_data(attr), addr.u8);
if (insert_to_maclist(addr) == 0) {
// Returns item if it was new and added
if (insert_to_maclist(addr)) {
// TODO: File can grow arbitarily large. Resource consumption risk.
// TODO: Consolidate use of file across source: shared resource for name, single point of access?
write_mac_to_file("/tmp/dawn_mac_list", addr);