cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ila_main.c (2735B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <net/genetlink.h>
      3#include <net/ila.h>
      4#include <net/netns/generic.h>
      5#include <uapi/linux/genetlink.h>
      6#include "ila.h"
      7
      8static const struct nla_policy ila_nl_policy[ILA_ATTR_MAX + 1] = {
      9	[ILA_ATTR_LOCATOR] = { .type = NLA_U64, },
     10	[ILA_ATTR_LOCATOR_MATCH] = { .type = NLA_U64, },
     11	[ILA_ATTR_IFINDEX] = { .type = NLA_U32, },
     12	[ILA_ATTR_CSUM_MODE] = { .type = NLA_U8, },
     13	[ILA_ATTR_IDENT_TYPE] = { .type = NLA_U8, },
     14};
     15
     16static const struct genl_ops ila_nl_ops[] = {
     17	{
     18		.cmd = ILA_CMD_ADD,
     19		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
     20		.doit = ila_xlat_nl_cmd_add_mapping,
     21		.flags = GENL_ADMIN_PERM,
     22	},
     23	{
     24		.cmd = ILA_CMD_DEL,
     25		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
     26		.doit = ila_xlat_nl_cmd_del_mapping,
     27		.flags = GENL_ADMIN_PERM,
     28	},
     29	{
     30		.cmd = ILA_CMD_FLUSH,
     31		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
     32		.doit = ila_xlat_nl_cmd_flush,
     33		.flags = GENL_ADMIN_PERM,
     34	},
     35	{
     36		.cmd = ILA_CMD_GET,
     37		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
     38		.doit = ila_xlat_nl_cmd_get_mapping,
     39		.start = ila_xlat_nl_dump_start,
     40		.dumpit = ila_xlat_nl_dump,
     41		.done = ila_xlat_nl_dump_done,
     42	},
     43};
     44
     45unsigned int ila_net_id;
     46
     47struct genl_family ila_nl_family __ro_after_init = {
     48	.hdrsize	= 0,
     49	.name		= ILA_GENL_NAME,
     50	.version	= ILA_GENL_VERSION,
     51	.maxattr	= ILA_ATTR_MAX,
     52	.policy = ila_nl_policy,
     53	.netnsok	= true,
     54	.parallel_ops	= true,
     55	.module		= THIS_MODULE,
     56	.ops		= ila_nl_ops,
     57	.n_ops		= ARRAY_SIZE(ila_nl_ops),
     58};
     59
     60static __net_init int ila_init_net(struct net *net)
     61{
     62	int err;
     63
     64	err = ila_xlat_init_net(net);
     65	if (err)
     66		goto ila_xlat_init_fail;
     67
     68	return 0;
     69
     70ila_xlat_init_fail:
     71	return err;
     72}
     73
     74static __net_exit void ila_exit_net(struct net *net)
     75{
     76	ila_xlat_exit_net(net);
     77}
     78
     79static struct pernet_operations ila_net_ops = {
     80	.init = ila_init_net,
     81	.exit = ila_exit_net,
     82	.id   = &ila_net_id,
     83	.size = sizeof(struct ila_net),
     84};
     85
     86static int __init ila_init(void)
     87{
     88	int ret;
     89
     90	ret = register_pernet_device(&ila_net_ops);
     91	if (ret)
     92		goto register_device_fail;
     93
     94	ret = genl_register_family(&ila_nl_family);
     95	if (ret)
     96		goto register_family_fail;
     97
     98	ret = ila_lwt_init();
     99	if (ret)
    100		goto fail_lwt;
    101
    102	return 0;
    103
    104fail_lwt:
    105	genl_unregister_family(&ila_nl_family);
    106register_family_fail:
    107	unregister_pernet_device(&ila_net_ops);
    108register_device_fail:
    109	return ret;
    110}
    111
    112static void __exit ila_fini(void)
    113{
    114	ila_lwt_fini();
    115	genl_unregister_family(&ila_nl_family);
    116	unregister_pernet_device(&ila_net_ops);
    117}
    118
    119module_init(ila_init);
    120module_exit(ila_fini);
    121MODULE_AUTHOR("Tom Herbert <tom@herbertland.com>");
    122MODULE_LICENSE("GPL");
    123MODULE_DESCRIPTION("IPv6: Identifier Locator Addressing (ILA)");