pandory500/oleavr-rgl-a500-mini-linux-3.10
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Make it possible to build IP stack as a module

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This is not pretty, but it works.
This commit is contained in:
Ole André Vadla Ravnås 2022-05-10 00:47:37 +02:00
parent 9dc4573cce
commit 77b228276c
26 changed files with 1494 additions and 25 deletions
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35
net/ipv4/af_inet.c
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@ -119,6 +119,10 @@
#include <linux/mroute.h>
#endif
MODULE_AUTHOR("Cast of dozens");
MODULE_DESCRIPTION("IPv4 protocol stack for Linux");
MODULE_LICENSE("GPL");
#ifdef CONFIG_ANDROID_PARANOID_NETWORK
#include <linux/android_aid.h>
@ -1702,13 +1706,23 @@ static int __init ipv4_offload_init(void)
return 0;
}
#ifndef CONFIG_INET_MODULE
fs_initcall(ipv4_offload_init);
#endif
static struct packet_type ip_packet_type __read_mostly = {
.type = cpu_to_be16(ETH_P_IP),
.func = ip_rcv,
};
#ifdef CONFIG_INET_MODULE
int tcp_congestion_init(void);
int tcp_fastopen_init(void);
int sysctl_ipv4_init(void);
int sysfs_ipv4_init(void);
int tcp_memcontrol_init(void);
#endif
static int __init inet_init(void)
{
struct inet_protosw *q;
@ -1717,6 +1731,12 @@ static int __init inet_init(void)
BUILD_BUG_ON(sizeof(struct inet_skb_parm) > FIELD_SIZEOF(struct sk_buff, cb));
#ifdef CONFIG_INET_MODULE
tcp_congestion_init();
tcp_fastopen_init();
ipv4_offload_init();
#endif
sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);
if (!sysctl_local_reserved_ports)
goto out;
@ -1823,6 +1843,21 @@ static int __init inet_init(void)
dev_add_pack(&ip_packet_type);
#ifdef CONFIG_INET_MODULE
#ifdef CONFIG_SYSCTL
sysctl_ipv4_init();
#endif
#ifdef CONFIG_SYSFS
sysfs_ipv4_init();
#endif
#ifdef CONFIG_MEMCG_KMEM
tcp_memcontrol_init();
#endif
/* TODO: Implement unload logic */
try_module_get(THIS_MODULE);
#endif
rc = 0;
out:
return rc;