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