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DHCPClient: Don't reject packets smaller than the max size

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It's acceptable to have less padding in a packet, the only requirement
is to have a single byte of 'END' in the DHCP fields.
This commit is contained in:
AnotherTest 2021-02-15 21:36:57 +03:30 • committed by Andreas Kling
commit 3440dbb1fc
Notes: sideshowbarker 2024-07-18 22:12:11 +09:00
2 changed files with 8 additions and 4 deletions
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6
Userland/Services/DHCPClient/main.cpp
View file

@ -25,6 +25,7 @@
*/
#include "DHCPv4Client.h"
#include <AK/Debug.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/String.h>
@ -69,7 +70,7 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
auto file = Core::File::construct("/proc/net/adapters");
if (!file->open(Core::IODevice::ReadOnly)) {
warnln("Error: {}", file->error_string());
dbgln("Error: {}", file->error_string());
return 1;
}
@ -77,7 +78,7 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
auto json = JsonValue::from_string(file_contents);
if (!json.has_value() || !json.value().is_array()) {
warnln("Error: No network adapters available");
dbgln("Error: No network adapters available");
return 1;
}
@ -90,6 +91,7 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
auto name = if_object.get("name").to_string();
auto mac = if_object.get("mac_address").to_string();
dbgln_if(DHCPV4_DEBUG, "Found adapter '{}' with mac {}", name, mac);
ifnames.append({ name, mac_from_string(mac) });
});