2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2010 The FreeBSD Foundation
6 * This software was developed by Edward Tomasz Napierala under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #include <sys/cdefs.h>
39 #include <sys/queue.h>
40 #include <sys/types.h>
41 #include <sys/_task.h>
48 struct rctl_rule_link;
53 * Rules describe an action to be taken when conditions defined
54 * in the rule are met. There is no global list of rules; instead,
55 * rules are linked to by the racct structures for all the subjects
56 * they apply to - for example, a rule of type "user" is linked to the
57 * appropriate struct uidinfo, and to all the processes of that user.
59 * 'rr_refcount' is equal to the number of rctl_rule_link structures
60 * pointing to the rule.
62 * This structure must never change after being added, via rctl_rule_link
63 * structures, to subjects. In order to change a rule, add a new rule
64 * and remove the previous one.
70 struct uidinfo *rs_uip;
71 struct loginclass *rs_loginclass;
72 struct prison_racct *rs_prison_racct;
83 * Allowed values for rr_subject_type and rr_per fields.
85 #define RCTL_SUBJECT_TYPE_UNDEFINED -1
86 #define RCTL_SUBJECT_TYPE_PROCESS 0x0000
87 #define RCTL_SUBJECT_TYPE_USER 0x0001
88 #define RCTL_SUBJECT_TYPE_LOGINCLASS 0x0003
89 #define RCTL_SUBJECT_TYPE_JAIL 0x0004
90 #define RCTL_SUBJECT_TYPE_MAX RCTL_SUBJECT_TYPE_JAIL
93 * Allowed values for rr_action field.
95 #define RCTL_ACTION_UNDEFINED -1
96 #define RCTL_ACTION_SIGHUP SIGHUP
97 #define RCTL_ACTION_SIGINT SIGINT
98 #define RCTL_ACTION_SIGQUIT SIGQUIT
99 #define RCTL_ACTION_SIGILL SIGILL
100 #define RCTL_ACTION_SIGTRAP SIGTRAP
101 #define RCTL_ACTION_SIGABRT SIGABRT
102 #define RCTL_ACTION_SIGEMT SIGEMT
103 #define RCTL_ACTION_SIGFPE SIGFPE
104 #define RCTL_ACTION_SIGKILL SIGKILL
105 #define RCTL_ACTION_SIGBUS SIGBUS
106 #define RCTL_ACTION_SIGSEGV SIGSEGV
107 #define RCTL_ACTION_SIGSYS SIGSYS
108 #define RCTL_ACTION_SIGPIPE SIGPIPE
109 #define RCTL_ACTION_SIGALRM SIGALRM
110 #define RCTL_ACTION_SIGTERM SIGTERM
111 #define RCTL_ACTION_SIGURG SIGURG
112 #define RCTL_ACTION_SIGSTOP SIGSTOP
113 #define RCTL_ACTION_SIGTSTP SIGTSTP
114 #define RCTL_ACTION_SIGCHLD SIGCHLD
115 #define RCTL_ACTION_SIGTTIN SIGTTIN
116 #define RCTL_ACTION_SIGTTOU SIGTTOU
117 #define RCTL_ACTION_SIGIO SIGIO
118 #define RCTL_ACTION_SIGXCPU SIGXCPU
119 #define RCTL_ACTION_SIGXFSZ SIGXFSZ
120 #define RCTL_ACTION_SIGVTALRM SIGVTALRM
121 #define RCTL_ACTION_SIGPROF SIGPROF
122 #define RCTL_ACTION_SIGWINCH SIGWINCH
123 #define RCTL_ACTION_SIGINFO SIGINFO
124 #define RCTL_ACTION_SIGUSR1 SIGUSR1
125 #define RCTL_ACTION_SIGUSR2 SIGUSR2
126 #define RCTL_ACTION_SIGTHR SIGTHR
127 #define RCTL_ACTION_SIGNAL_MAX RCTL_ACTION_SIGTHR
128 #define RCTL_ACTION_DENY (RCTL_ACTION_SIGNAL_MAX + 1)
129 #define RCTL_ACTION_LOG (RCTL_ACTION_SIGNAL_MAX + 2)
130 #define RCTL_ACTION_DEVCTL (RCTL_ACTION_SIGNAL_MAX + 3)
131 #define RCTL_ACTION_THROTTLE (RCTL_ACTION_SIGNAL_MAX + 4)
132 #define RCTL_ACTION_MAX RCTL_ACTION_THROTTLE
134 #define RCTL_AMOUNT_UNDEFINED -1
136 struct rctl_rule *rctl_rule_alloc(int flags);
137 struct rctl_rule *rctl_rule_duplicate(const struct rctl_rule *rule, int flags);
138 void rctl_rule_acquire(struct rctl_rule *rule);
139 void rctl_rule_release(struct rctl_rule *rule);
140 int rctl_rule_add(struct rctl_rule *rule);
141 int rctl_rule_remove(struct rctl_rule *filter);
142 int rctl_enforce(struct proc *p, int resource, uint64_t amount);
143 void rctl_throttle_decay(struct racct *racct, int resource);
144 int64_t rctl_pcpu_available(const struct proc *p);
145 uint64_t rctl_get_limit(struct proc *p, int resource);
146 uint64_t rctl_get_available(struct proc *p, int resource);
147 const char *rctl_resource_name(int resource);
148 void rctl_proc_ucred_changed(struct proc *p, struct ucred *newcred);
149 int rctl_proc_fork(struct proc *parent, struct proc *child);
150 void rctl_racct_release(struct racct *racct);
157 int rctl_get_racct(const char *inbufp, size_t inbuflen, char *outbufp,
159 int rctl_get_rules(const char *inbufp, size_t inbuflen, char *outbufp,
161 int rctl_get_limits(const char *inbufp, size_t inbuflen, char *outbufp,
163 int rctl_add_rule(const char *inbufp, size_t inbuflen, char *outbufp,
165 int rctl_remove_rule(const char *inbufp, size_t inbuflen, char *outbufp,
169 #endif /* !_KERNEL */
171 #endif /* !_RCTL_H_ */