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sock_hc: track pid of processes creating bind #32

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sock_hc: track pid of processes creating bind #32

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11 changes: 6 additions & 5 deletions src/hooks/sock_hc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ void igloo_sock_bind(struct socket *sock, struct sockaddr_storage *address){
int hrv = 1;
int i;
mutex_lock(&bind_mutex);
char buffer[32];

if (address->ss_family == AF_INET) {
// IPv4: hypercall 200
Expand All @@ -51,8 +52,8 @@ void igloo_sock_bind(struct socket *sock, struct sockaddr_storage *address){
}
hrv = igloo_hypercall2(IGLOO_IPV4_SETUP, (unsigned long)current->comm, (unsigned long)addr_in->sin_addr.s_addr);
}

igloo_hypercall2(IGLOO_IPV4_BIND, (unsigned long)port, (unsigned long)is_stream);
snprintf(buffer, sizeof(buffer), "%hu:%ld", port, (long)current->pid);
igloo_hypercall2(IGLOO_IPV4_BIND, (unsigned long)&buffer, (unsigned long)is_stream);

} else if (address->ss_family == AF_INET6) {
// IPv6: hypercall 201
Expand All @@ -70,8 +71,8 @@ void igloo_sock_bind(struct socket *sock, struct sockaddr_storage *address){
}
hrv = igloo_hypercall2(IGLOO_IPV6_SETUP, (unsigned long)current->comm, (unsigned long)&addr_in6->sin6_addr);
}

igloo_hypercall2(IGLOO_IPV6_BIND, (unsigned long)port, (unsigned long)is_stream);
snprintf(buffer, sizeof(buffer), "%hu:%ld", port, (long)current->pid);
igloo_hypercall2(IGLOO_IPV6_BIND, (unsigned long)&buffer, (unsigned long)is_stream);
}
mutex_unlock(&bind_mutex);
}
Expand Down Expand Up @@ -136,4 +137,4 @@ int sock_hc_init(void){
printk(KERN_ERR "IGLOO: Failed to find igloo_sock_bind_module symbol via kallsyms\n");
}
return 0;
}
}