3 * 13 Jun 91 wsak (wk0x@andrew) added mips support
6 #include <net-snmp/net-snmp-config.h>
10 #include <sys/types.h>
26 #include <netinet/in.h>
32 #include <net-snmp/net-snmp-includes.h>
35 #include <net-snmp/agent/ds_agent.h>
46 init_kmem(const char *file
)
48 #if HAVE_KVM_OPENFILES
50 kd
= kvm_openfiles(NULL
, NULL
, NULL
, O_RDONLY
, err
);
51 if (kd
== NULL
&& !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID
,
52 NETSNMP_DS_AGENT_NO_ROOT_ACCESS
)) {
53 snmp_log(LOG_CRIT
, "init_kmem: kvm_openfiles failed: %s\n", err
);
57 kd
= kvm_open(NULL
, NULL
, NULL
, O_RDONLY
, NULL
);
58 if (!kd
&& !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID
,
59 NETSNMP_DS_AGENT_NO_ROOT_ACCESS
)) {
60 snmp_log(LOG_CRIT
, "init_kmem: kvm_open failed: %s\n",
64 #endif /* HAVE_KVM_OPENFILES */
71 * It seeks to the location off in kmem
72 * It does a read into target of siz bytes.
74 * Return 0 on failure and 1 on sucess.
80 klookup(unsigned long off
, char *target
, int siz
)
85 result
= kvm_read(kd
, off
, target
, siz
);
87 #if HAVE_KVM_OPENFILES
88 snmp_log(LOG_ERR
, "kvm_read(*, %lx, %p, %d) = %d: %s\n", off
,
89 target
, siz
, result
, kvm_geterr(kd
));
91 snmp_log(LOG_ERR
, "kvm_read(*, %lx, %p, %d) = %d: ", off
, target
,
93 snmp_log_perror("klookup");
100 #else /* HAVE_KVM_H */
102 static off_t
klseek(off_t
);
103 static int klread(char *, int);
107 init_kmem(const char *file
)
109 kmem
= open(file
, O_RDONLY
);
110 if (kmem
< 0 && !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID
,
111 NETSNMP_DS_AGENT_NO_ROOT_ACCESS
)) {
112 snmp_log_perror(file
);
115 fcntl(kmem
, F_SETFD
, 1);
116 mem
= open("/dev/mem", O_RDONLY
);
117 if (mem
< 0 && !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID
,
118 NETSNMP_DS_AGENT_NO_ROOT_ACCESS
)) {
119 snmp_log_perror("/dev/mem");
122 fcntl(mem
, F_SETFD
, 1);
124 swap
= open(DMEM_LOC
, O_RDONLY
);
125 if (swap
< 0 && !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID
,
126 NETSNMP_DS_AGENT_NO_ROOT_ACCESS
)) {
127 snmp_log_perror(DMEM_LOC
);
130 fcntl(swap
, F_SETFD
, 1);
136 * Seek into the kernel for a value.
141 return (lseek(kmem
, (off_t
) base
, SEEK_SET
));
146 * Read from the kernel
149 klread(char *buf
, int buflen
)
151 return (read(kmem
, buf
, buflen
));
158 * It seeks to the location off in kmem
159 * It does a read into target of siz bytes.
161 * Return 0 on failure and 1 on sucess.
167 klookup(unsigned long off
, char *target
, int siz
)
174 if ((retsiz
= klseek((off_t
) off
)) != off
) {
175 snmp_log(LOG_ERR
, "klookup(%lx, %p, %d): ", off
, target
, siz
);
176 snmp_log_perror("klseek");
177 #ifdef EXIT_ON_BAD_KLREAD
182 if ((retsiz
= klread(target
, siz
)) != siz
) {
183 if (snmp_get_do_debugging()) {
185 * these happen too often on too many architectures to print them
186 * unless we're in debugging mode. People get very full log files.
188 snmp_log(LOG_ERR
, "klookup(%lx, %p, %d): ", off
, target
, siz
);
189 snmp_log_perror("klread");
191 #ifdef EXIT_ON_BAD_KLREAD
199 #endif /* HAVE_KVM_H */
201 #endif /* CAN_USE_NLIST */