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path: root/include/linux/init_task.h
AgeCommit message (Expand)Author
2019-02-04sched/core: Convert task_struct.stack_refcount to refcount_tElena Reshetova
2018-07-21pids: Move the pgrp and session pid pointers from task_struct to signal_structEric W. Biederman
2018-01-17Expand INIT_STRUCT_PID and removeDavid Howells
2018-01-17Expand the INIT_SIGNALS and INIT_SIGHAND macros and removeDavid Howells
2018-01-17Expand various INIT_* macros and removeDavid Howells
2018-01-17Expand INIT_TASK() in init/init_task.c and removeDavid Howells
2018-01-09Construct init thread stack in the linker script rather than by unionDavid Howells
2017-11-17pid: remove pidhashGargi Sharma
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
2017-09-08locking/rtmutex: replace top-waiter and pi_waiters leftmost cachingDavidlohr Bueso
2017-07-24init_task: Remove redundant INIT_TASK_RCU_TREE_PREEMPT() macroPaul E. McKenney
2017-07-05sched/cputime: Move the vtime task fields to their own structFrederic Weisbecker
2017-07-05sched/cputime: Rename vtime fieldsFrederic Weisbecker
2017-05-03Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/...Linus Torvalds
2017-05-02Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jik...Linus Torvalds
2017-04-04sched/rtmutex/deadline: Fix a PI crash for deadline tasksXunlei Pang
2017-03-28LSM: Revive security_task_alloc() hook and per "struct task_struct" security ...Tetsuo Handa
2017-03-08livepatch: change to a per-task consistency modelJosh Poimboeuf
2017-03-03sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogro...Ingo Molnar
2017-03-02sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linu...Ingo Molnar
2017-03-02sched/headers: Prepare to move the 'root_task_group' declaration to <linux/sc...Ingo Molnar
2017-01-27timers: Omit POSIX timer stuff from task_struct when disabledNicolas Pitre
2016-09-16sched/core: Free the stack early if CONFIG_THREAD_INFO_IN_TASKAndy Lutomirski
2016-09-15sched/core: Allow putting thread_info into task_structAndy Lutomirski
2016-06-24fix up initial thread stack pointer vs thread_info confusionLinus Torvalds
2015-12-04sched/cputime: Convert vtime_seqlock to seqcountFrederic Weisbecker
2015-11-05Merge branch 'for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cg...Linus Torvalds
2015-10-15posix_cpu_timer: Reduce unnecessary sighand lock contentionJason Low
2015-10-15posix_cpu_timer: Convert cputimer->running to boolJason Low
2015-09-16sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsemTejun Heo
2015-09-16Revert "sched, cgroup: replace signal_struct->group_rwsem with a global percp...Tejun Heo
2015-08-03sched/cputime: Guarantee stime + utime == rtimePeter Zijlstra
2015-06-26Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cg...Linus Torvalds
2015-05-26sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsemTejun Heo
2015-05-08sched, timer: Use the atomic task_cputime in thread_group_cputimerJason Low
2015-05-08sched, timer: Replace spinlocks with atomics in thread_group_cputimer(), to i...Jason Low
2015-02-13kasan: enable stack instrumentationAndrey Ryabinin
2015-02-12all arches, signal: move restart_block to struct task_structAndy Lutomirski
2014-12-09Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/ker...Linus Torvalds
2014-11-16sched/numa: Init numa balancing fields of init_taskKirill Tkhai
2014-10-29rcu: Remove redundant TREE_PREEMPT_RCU config optionPranith Kumar
2014-09-07rcu: Remove local_irq_disable() in rcu_preempt_note_context_switch()Paul E. McKenney
2014-09-07rcu: Make TASKS_RCU handle nohz_full= CPUsPaul E. McKenney
2014-09-07rcu: Add call_rcu_tasks()Paul E. McKenney
2014-07-09rcu: Simplify priority boosting by putting rt_mutex in rcu_nodePaul E. McKenney
2014-01-23Merge git://git.infradead.org/users/eparis/auditLinus Torvalds
2014-01-21introduce for_each_thread() to replace the buggy while_each_thread()Oleg Nesterov
2014-01-13audit: convert all sessionid declaration to unsigned intEric Paris
2014-01-13rtmutex: Turn the plist into an rb-treePeter Zijlstra
2013-11-06seqcount: Add lockdep functionality to seqcount/seqlock structuresJohn Stultz
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-13 22:55:17 +0000
>nla == NULL) return -EINVAL; err = nla_parse_nested(tb, TCA_NAT_MAX, nla, nat_policy, NULL); if (err < 0) return err; if (tb[TCA_NAT_PARMS] == NULL) return -EINVAL; parm = nla_data(tb[TCA_NAT_PARMS]); index = parm->index; err = tcf_idr_check_alloc(tn, &index, a, bind); if (!err) { ret = tcf_idr_create(tn, index, est, a, &act_nat_ops, bind, false); if (ret) { tcf_idr_cleanup(tn, index); return ret; } ret = ACT_P_CREATED; } else if (err > 0) { if (bind) return 0; if (!ovr) { tcf_idr_release(*a, bind); return -EEXIST; } } else { return err; } p = to_tcf_nat(*a); spin_lock_bh(&p->tcf_lock); p->old_addr = parm->old_addr; p->new_addr = parm->new_addr; p->mask = parm->mask; p->flags = parm->flags; p->tcf_action = parm->action; spin_unlock_bh(&p->tcf_lock); if (ret == ACT_P_CREATED) tcf_idr_insert(tn, *a); return ret; } static int tcf_nat_act(struct sk_buff *skb, const struct tc_action *a, struct tcf_result *res) { struct tcf_nat *p = to_tcf_nat(a); struct iphdr *iph; __be32 old_addr; __be32 new_addr; __be32 mask; __be32 addr; int egress; int action; int ihl; int noff; spin_lock(&p->tcf_lock); tcf_lastuse_update(&p->tcf_tm); old_addr = p->old_addr; new_addr = p->new_addr; mask = p->mask; egress = p->flags & TCA_NAT_FLAG_EGRESS; action = p->tcf_action; bstats_update(&p->tcf_bstats, skb); spin_unlock(&p->tcf_lock); if (unlikely(action == TC_ACT_SHOT)) goto drop; noff = skb_network_offset(skb); if (!pskb_may_pull(skb, sizeof(*iph) + noff)) goto drop; iph = ip_hdr(skb); if (egress) addr = iph->saddr; else addr = iph->daddr; if (!((old_addr ^ addr) & mask)) { if (skb_try_make_writable(skb, sizeof(*iph) + noff)) goto drop; new_addr &= mask; new_addr |= addr & ~mask; /* Rewrite IP header */ iph = ip_hdr(skb); if (egress) iph->saddr = new_addr; else iph->daddr = new_addr; csum_replace4(&iph->check, addr, new_addr); } else if ((iph->frag_off & htons(IP_OFFSET)) || iph->protocol != IPPROTO_ICMP) { goto out; } ihl = iph->ihl * 4; /* It would be nice to share code with stateful NAT. */ switch (iph->frag_off & htons(IP_OFFSET) ? 0 : iph->protocol) { case IPPROTO_TCP: { struct tcphdr *tcph; if (!pskb_may_pull(skb, ihl + sizeof(*tcph) + noff) || skb_try_make_writable(skb, ihl + sizeof(*tcph) + noff)) goto drop; tcph = (void *)(skb_network_header(skb) + ihl); inet_proto_csum_replace4(&tcph->check, skb, addr, new_addr, true); break; } case IPPROTO_UDP: { struct udphdr *udph; if (!pskb_may_pull(skb, ihl + sizeof(*udph) + noff) || skb_try_make_writable(skb, ihl + sizeof(*udph) + noff)) goto drop; udph = (void *)(skb_network_header(skb) + ihl); if (udph->check || skb->ip_summed == CHECKSUM_PARTIAL) { inet_proto_csum_replace4(&udph->check, skb, addr, new_addr, true); if (!udph->check) udph->check = CSUM_MANGLED_0; } break; } case IPPROTO_ICMP: { struct icmphdr *icmph; if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + noff)) goto drop; icmph = (void *)(skb_network_header(skb) + ihl); if ((icmph->type != ICMP_DEST_UNREACH) && (icmph->type != ICMP_TIME_EXCEEDED) && (icmph->type != ICMP_PARAMETERPROB)) break; if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + sizeof(*iph) + noff)) goto drop; icmph = (void *)(skb_network_header(skb) + ihl); iph = (void *)(icmph + 1); if (egress) addr = iph->daddr; else addr = iph->saddr; if ((old_addr ^ addr) & mask) break; if (skb_try_make_writable(skb, ihl + sizeof(*icmph) + sizeof(*iph) + noff)) goto drop; icmph = (void *)(skb_network_header(skb) + ihl); iph = (void *)(icmph + 1); new_addr &= mask; new_addr |= addr & ~mask; /* XXX Fix up the inner checksums. */ if (egress) iph->daddr = new_addr; else iph->saddr = new_addr; inet_proto_csum_replace4(&icmph->checksum, skb, addr, new_addr, false); break; } default: break; } out: return action; drop: spin_lock(&p->tcf_lock); p->tcf_qstats.drops++; spin_unlock(&p->tcf_lock); return TC_ACT_SHOT; } static int tcf_nat_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) { unsigned char *b = skb_tail_pointer(skb); struct tcf_nat *p = to_tcf_nat(a); struct tc_nat opt = { .old_addr = p->old_addr, .new_addr = p->new_addr, .mask = p->mask, .flags = p->flags, .index = p->tcf_index, .action = p->tcf_action, .refcnt = refcount_read(&p->tcf_refcnt) - ref, .bindcnt = atomic_read(&p->tcf_bindcnt) - bind, }; struct tcf_t t; if (nla_put(skb, TCA_NAT_PARMS, sizeof(opt), &opt)) goto nla_put_failure; tcf_tm_dump(&t, &p->tcf_tm); if (nla_put_64bit(skb, TCA_NAT_TM, sizeof(t), &t, TCA_NAT_PAD)) goto nla_put_failure; return skb->len; nla_put_failure: nlmsg_trim(skb, b); return -1; } static int tcf_nat_walker(struct net *net, struct sk_buff *skb, struct netlink_callback *cb, int type, const struct tc_action_ops *ops, struct netlink_ext_ack *extack) { struct tc_action_net *tn = net_generic(net, nat_net_id); return tcf_generic_walker(tn, skb, cb, type, ops, extack); } static int tcf_nat_search(struct net *net, struct tc_action **a, u32 index, struct netlink_ext_ack *extack) { struct tc_action_net *tn = net_generic(net, nat_net_id); return tcf_idr_search(tn, a, index); } static struct tc_action_ops act_nat_ops = { .kind = "nat", .type = TCA_ACT_NAT, .owner = THIS_MODULE, .act = tcf_nat_act, .dump = tcf_nat_dump, .init = tcf_nat_init, .walk = tcf_nat_walker, .lookup = tcf_nat_search, .size = sizeof(struct tcf_nat), }; static __net_init int nat_init_net(struct net *net) { struct tc_action_net *tn = net_generic(net, nat_net_id); return tc_action_net_init(net, tn, &act_nat_ops); } static void __net_exit nat_exit_net(struct list_head *net_list) { tc_action_net_exit(net_list, nat_net_id); } static struct pernet_operations nat_net_ops = { .init = nat_init_net, .exit_batch = nat_exit_net, .id = &nat_net_id, .size = sizeof(struct tc_action_net), }; MODULE_DESCRIPTION("Stateless NAT actions"); MODULE_LICENSE("GPL"); static int __init nat_init_module(void) { return tcf_register_action(&act_nat_ops, &nat_net_ops); } static void __exit nat_cleanup_module(void) { tcf_unregister_action(&act_nat_ops, &nat_net_ops); } module_init(nat_init_module); module_exit(nat_cleanup_module);
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-13 22:55:16 +0000