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Userland: Set the mask of a network adapter with ifconfig (#1388)

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A new IP address or a new network mask can be specified in the command
line arguments of ifconfig to replace the old values of a given network
adapter. Additionally, more information is being printed for each adapter.
This commit is contained in:
Marios Prokopakis 2020-03-11 22:30:41 +02:00 • committed by GitHub
parent 4c9bb266df
commit 8cf962a102
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6 changed files with 155 additions and 49 deletions
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8
Kernel/Net/IPv4Socket.cpp
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@ -485,6 +485,14 @@ int IPv4Socket::ioctl(FileDescription&, unsigned request, unsigned arg)
adapter->set_ipv4_address(IPv4Address(((sockaddr_in&)ifr->ifr_addr).sin_addr.s_addr));
return 0;
case SIOCSIFNETMASK:
if (!Process::current->is_superuser())
return -EPERM;
if (ifr->ifr_addr.sa_family != AF_INET)
return -EAFNOSUPPORT;
adapter->set_ipv4_netmask(IPv4Address(((sockaddr_in&)ifr->ifr_netmask).sin_addr.s_addr));
return 0;
case SIOCGIFADDR:
if (!Process::current->validate_write_typed(ifr))
return -EFAULT;