src/libstatgrab/tools.c

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2003 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <regex.h>
#ifdef ALLBSD
#include <fcntl.h>
#include <kvm.h>
#endif
#ifdef NETBSD
#include <uvm/uvm_extern.h>
#endif

#include "tools.h"

#ifdef SOLARIS
#include <libdevinfo.h>
#include <kstat.h>
#include <unistd.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/dkio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/fcntl.h>
#include <dirent.h>
#endif

#ifdef SOLARIS
struct map{
        char *bsd;
        char *svr;

        struct map *next;
};
typedef struct map mapping_t;

static mapping_t *mapping = NULL; 

char *get_svr_from_bsd(char *bsd){
        mapping_t *map_ptr;
        for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
                if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;

        return bsd;
}

void add_mapping(char *bsd, char *svr){
        mapping_t *map_ptr;
        mapping_t *map_end_ptr;

        bsd = strdup(bsd);
        svr = strdup(svr);

        if (mapping == NULL){
                mapping = malloc(sizeof(mapping_t));
                if (mapping == NULL) return;
                map_ptr = mapping;
        }else{
                /* See if its already been added */
                for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
                        if( (!strcmp(map_ptr->bsd, bsd)) || (!strcmp(map_ptr->svr, svr)) ){
                                return;
                        }
                        map_end_ptr = map_ptr;
                }

                /* We've reached end of list and not found the entry.. So we need to malloc
                 * new mapping_t
                 */
                map_end_ptr->next = malloc(sizeof(mapping_t));
                if (map_end_ptr->next == NULL) return;
                map_ptr = map_end_ptr->next;
        }

        map_ptr->next = NULL;
        map_ptr->bsd = bsd;
        map_ptr->svr = svr;

        return;
}

char *read_dir(char *disk_path){
        DIR *dirp;
        struct dirent *dp;
        struct stat stbuf;
        char *svr_name;
        char current_dir[MAXPATHLEN];
        char file_name[MAXPATHLEN];
        char temp_name[MAXPATHLEN];
        char dir_dname[MAXPATHLEN];
        char *dsk_dir;
        int x;

        dsk_dir = "/dev/osa/dev/dsk";
        strncpy(current_dir, dsk_dir, sizeof current_dir);
        if ((dirp = opendir(current_dir)) == NULL){
                dsk_dir = "/dev/dsk";
                snprintf(current_dir, sizeof current_dir, "%s", dsk_dir);
                if ((dirp = opendir(current_dir)) == NULL){
                        return NULL;
                }
        }

        while ((dp = readdir(dirp)) != NULL){
                snprintf(temp_name, sizeof temp_name, "../..%s", disk_path);
                snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name);
                stat(dir_dname,&stbuf);

                if (S_ISBLK(stbuf.st_mode)){
                        x = readlink(dir_dname, file_name, sizeof(file_name));
                        file_name[x] = '\0';
                        if (strcmp(file_name, temp_name) == 0) {
                                svr_name = strdup(dp->d_name);
                                closedir(dirp);
                                return svr_name;
                        }
                }
        }
        closedir(dirp);
        return NULL;
}


int get_alias(char *alias){
        char file[MAXPATHLEN];
        di_node_t root_node;
        di_node_t node;
        di_minor_t minor = DI_MINOR_NIL;
        char tmpnode[MAXPATHLEN];
        char *phys_path;
        char *minor_name;
        char *value;
        int instance;
        if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
                return 1;
        }
        node = di_drv_first_node(alias, root_node);
        while (node != DI_NODE_NIL) {
                if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
                        instance = di_instance(node);
                        phys_path = di_devfs_path(node);
                        minor_name = di_minor_name(minor);
                        strcpy(tmpnode, alias);
                        sprintf(tmpnode, "%s%d", tmpnode, instance);
                        strlcpy(file, "/devices", sizeof file);
                        strlcat(file, phys_path, sizeof file);
                        strlcat(file, ":", sizeof file);
                        strlcat(file, minor_name, sizeof file);
                        value = read_dir(file);
                        if (value != NULL){
                                add_mapping(tmpnode, value);
                        }
                        di_devfs_path_free(phys_path);
                        node = di_drv_next_node(node);
                }else{
                        node = di_drv_next_node(node);
                }
        }
        di_fini(root_node);
        return 0;
}

int build_mapping(){
        char device_name[512];
        int x;
        kstat_ctl_t *kc;
        kstat_t *ksp;
        kstat_io_t kios;

        if ((kc = kstat_open()) == NULL) {
                return;
        }

        for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
                if (!strcmp(ksp->ks_class, "disk")) {
                        if(ksp->ks_type != KSTAT_TYPE_IO) continue;
                        /* We dont want metadevices appearing as num_diskio */
                        if(strcmp(ksp->ks_module, "md")==0) continue;
                        if((kstat_read(kc, ksp, &kios))==-1) continue;
                        strncpy(device_name, ksp->ks_name, sizeof device_name);
                        for(x=0;x<(sizeof device_name);x++){
                                if( isdigit((int)device_name[x]) ) break;
                        }
                        if(x == sizeof device_name) x--;
                        device_name[x] = '\0';
                        if((get_alias(device_name)) != 0){
                                return 1;
                        }
                }
        }

        return 0;
}

#endif


char *f_read_line(FILE *f, const char *string){
        /* Max line length. 8k should be more than enough */
        static char line[8192];

        while((fgets(line, sizeof(line), f))!=NULL){
                if(strncmp(string, line, strlen(string))==0){
                        return line;
                }
        }

        return NULL;
}

char *get_string_match(char *line, regmatch_t *match){
        int len=match->rm_eo - match->rm_so;
        char *match_string=malloc(len+1);

        match_string=strncpy(match_string, line+match->rm_so, len);
        match_string[len]='\0';

        return match_string;
}


#ifndef HAVE_ATOLL
static long long atoll(const char *s) {
        long long value = 0;
        int isneg = 0;

        while (*s == ' ' || *s == '\t') {
                s++;
        }
        if (*s == '-') {
                isneg = 1;
                s++;
        }
        while (*s >= '0' && *s <= '9') {
                value = (10 * value) + (*s - '0');
                s++;
        }
        return (isneg ? -value : value);
}
#endif

long long get_ll_match(char *line, regmatch_t *match){
        char *ptr;
        long long num;

        ptr=line+match->rm_so;
        num=atoll(ptr);

        return num;
}

#ifdef ALLBSD
kvm_t *get_kvm() {
        static kvm_t *kvmd = NULL;

        if (kvmd != NULL) {
                return kvmd;
        }

        kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
        return kvmd;
}
#endif

#ifdef NETBSD
struct uvmexp *get_uvmexp() {
        static u_long addr = 0;
        static struct uvmexp uvm;
        kvm_t *kvmd = get_kvm();

        if (kvmd == NULL) {
                return NULL;
        }

        if (addr == 0) {
                struct nlist symbols[] = {
                        { "_uvmexp" },
                        { NULL }
                };

                if (kvm_nlist(kvmd, symbols) != 0) {
                        return NULL;
                }
                addr = symbols[0].n_value;
        }

        if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
                return NULL;
        }
        return &uvm;
}
#endif

int statgrab_init(){
#ifdef ALLBSD 
        { 
                kvm_t *kvmd = get_kvm(); 
                if (kvmd == NULL) return 1;
        }
#endif
#ifdef NETBSD
        {
                struct uvmexp *uvm = get_uvmexp();
                if (uvm == NULL) return 1;
        }
#endif
#ifdef SOLARIS
        if((build_mapping()) != 0) return 1;
#endif
        return 0;
}
Revision:	1.17
Committed:	Mon Jan 5 14:21:07 2004 UTC (20 years, 4 months ago) by pajs
Content type:	text/plain
Branch:	MAIN
Changes since 1.16:	+12 -11 lines
Log Message:	Minor tiding
#	User	Rev	Content
1	tdb	1.5	/*
2			* i-scream central monitoring system
3	tdb	1.6	* http://www.i-scream.org
4			* Copyright (C) 2000-2003 i-scream
5	tdb	1.5	*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19			*/
20
21			#ifdef HAVE_CONFIG_H
22			#include "config.h"
23			#endif
24
25	pajs	1.1	#include <stdio.h>
26			#include <string.h>
27	pajs	1.3	#include <stdlib.h>
28			#include <sys/types.h>
29			#include <regex.h>
30	ats	1.9	#ifdef ALLBSD
31	ats	1.8	#include <fcntl.h>
32			#include <kvm.h>
33			#endif
34	ats	1.9	#ifdef NETBSD
35			#include <uvm/uvm_extern.h>
36			#endif
37	pajs	1.1
38	ats	1.7	#include "tools.h"
39
40	pajs	1.14	#ifdef SOLARIS
41			#include <libdevinfo.h>
42			#include <kstat.h>
43			#include <unistd.h>
44			#include <ctype.h>
45			#include <sys/types.h>
46			#include <sys/dkio.h>
47			#include <sys/stat.h>
48			#include <fcntl.h>
49			#include <sys/fcntl.h>
50			#include <dirent.h>
51			#endif
52
53			#ifdef SOLARIS
54			struct map{
55			char *bsd;
56			char *svr;
57
58			struct map *next;
59			};
60			typedef struct map mapping_t;
61
62			static mapping_t *mapping = NULL;
63
64			char get_svr_from_bsd(char bsd){
65			mapping_t *map_ptr;
66			for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
67			if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
68
69			return bsd;
70			}
71
72			void add_mapping(char bsd, char svr){
73			mapping_t *map_ptr;
74			mapping_t *map_end_ptr;
75
76			bsd = strdup(bsd);
77			svr = strdup(svr);
78
79			if (mapping == NULL){
80			mapping = malloc(sizeof(mapping_t));
81			if (mapping == NULL) return;
82			map_ptr = mapping;
83			}else{
84			/* See if its already been added */
85			for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
86			if( (!strcmp(map_ptr->bsd, bsd)) \|\| (!strcmp(map_ptr->svr, svr)) ){
87			return;
88			}
89			map_end_ptr = map_ptr;
90			}
91
92			/* We've reached end of list and not found the entry.. So we need to malloc
93			* new mapping_t
94			*/
95			map_end_ptr->next = malloc(sizeof(mapping_t));
96			if (map_end_ptr->next == NULL) return;
97			map_ptr = map_end_ptr->next;
98			}
99
100			map_ptr->next = NULL;
101			map_ptr->bsd = bsd;
102			map_ptr->svr = svr;
103
104			return;
105			}
106
107			char read_dir(char disk_path){
108			DIR *dirp;
109	tdb	1.15	struct dirent *dp;
110			struct stat stbuf;
111	pajs	1.14	char *svr_name;
112	tdb	1.15	char current_dir[MAXPATHLEN];
113			char file_name[MAXPATHLEN];
114			char temp_name[MAXPATHLEN];
115			char dir_dname[MAXPATHLEN];
116	pajs	1.14	char *dsk_dir;
117			int x;
118
119			dsk_dir = "/dev/osa/dev/dsk";
120	tdb	1.15	strncpy(current_dir, dsk_dir, sizeof current_dir);
121			if ((dirp = opendir(current_dir)) == NULL){
122	pajs	1.14	dsk_dir = "/dev/dsk";
123			snprintf(current_dir, sizeof current_dir, "%s", dsk_dir);
124			if ((dirp = opendir(current_dir)) == NULL){
125			return NULL;
126			}
127			}
128
129	tdb	1.15	while ((dp = readdir(dirp)) != NULL){
130	pajs	1.14	snprintf(temp_name, sizeof temp_name, "../..%s", disk_path);
131			snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name);
132			stat(dir_dname,&stbuf);
133
134			if (S_ISBLK(stbuf.st_mode)){
135			x = readlink(dir_dname, file_name, sizeof(file_name));
136			file_name[x] = '\0';
137			if (strcmp(file_name, temp_name) == 0) {
138			svr_name = strdup(dp->d_name);
139			closedir(dirp);
140			return svr_name;
141			}
142			}
143			}
144	tdb	1.16	closedir(dirp);
145	pajs	1.14	return NULL;
146			}
147
148
149
150			int get_alias(char *alias){
151			char file[MAXPATHLEN];
152			di_node_t root_node;
153			di_node_t node;
154			di_minor_t minor = DI_MINOR_NIL;
155			char tmpnode[MAXPATHLEN];
156			char *phys_path;
157			char *minor_name;
158			char *value;
159			int instance;
160			if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
161	pajs	1.17	return 1;
162	pajs	1.14	}
163			node = di_drv_first_node(alias, root_node);
164			while (node != DI_NODE_NIL) {
165			if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
166			instance = di_instance(node);
167			phys_path = di_devfs_path(node);
168			minor_name = di_minor_name(minor);
169			strcpy(tmpnode, alias);
170			sprintf(tmpnode, "%s%d", tmpnode, instance);
171	pajs	1.17	strlcpy(file, "/devices", sizeof file);
172			strlcat(file, phys_path, sizeof file);
173			strlcat(file, ":", sizeof file);
174			strlcat(file, minor_name, sizeof file);
175	pajs	1.14	value = read_dir(file);
176			if (value != NULL){
177			add_mapping(tmpnode, value);
178			}
179			di_devfs_path_free(phys_path);
180			node = di_drv_next_node(node);
181			}else{
182			node = di_drv_next_node(node);
183			}
184	tdb	1.15	}
185	pajs	1.14	di_fini(root_node);
186	pajs	1.17	return 0;
187	pajs	1.14	}
188
189	pajs	1.17	int build_mapping(){
190	pajs	1.14	char device_name[512];
191			int x;
192	tdb	1.15	kstat_ctl_t *kc;
193			kstat_t *ksp;
194			kstat_io_t kios;
195	pajs	1.14
196			if ((kc = kstat_open()) == NULL) {
197	tdb	1.16	return;
198	tdb	1.15	}
199	pajs	1.14
200	tdb	1.15	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
201			if (!strcmp(ksp->ks_class, "disk")) {
202			if(ksp->ks_type != KSTAT_TYPE_IO) continue;
203			/* We dont want metadevices appearing as num_diskio */
204			if(strcmp(ksp->ks_module, "md")==0) continue;
205			if((kstat_read(kc, ksp, &kios))==-1) continue;
206	pajs	1.14	strncpy(device_name, ksp->ks_name, sizeof device_name);
207			for(x=0;x<(sizeof device_name);x++){
208			if( isdigit((int)device_name[x]) ) break;
209			}
210			if(x == sizeof device_name) x--;
211			device_name[x] = '\0';
212	pajs	1.17	if((get_alias(device_name)) != 0){
213			return 1;
214			}
215	tdb	1.15	}
216	pajs	1.14	}
217	tdb	1.15
218	pajs	1.17	return 0;
219	pajs	1.14	}
220
221			#endif
222
223
224
225	pajs	1.1	char f_read_line(FILE f, const char *string){
226			/* Max line length. 8k should be more than enough */
227			static char line[8192];
228
229	pajs	1.2	while((fgets(line, sizeof(line), f))!=NULL){
230	pajs	1.1	if(strncmp(string, line, strlen(string))==0){
231			return line;
232			}
233			}
234
235			return NULL;
236	pajs	1.3	}
237
238			char get_string_match(char line, regmatch_t *match){
239			int len=match->rm_eo - match->rm_so;
240			char *match_string=malloc(len+1);
241
242			match_string=strncpy(match_string, line+match->rm_so, len);
243			match_string[len]='\0';
244
245			return match_string;
246			}
247	ats	1.7
248	pajs	1.14
249
250	ats	1.13	#ifndef HAVE_ATOLL
251			static long long atoll(const char *s) {
252			long long value = 0;
253			int isneg = 0;
254
255			while (s == ' ' \|\| s == '\t') {
256			s++;
257			}
258			if (*s == '-') {
259			isneg = 1;
260			s++;
261			}
262			while (s >= '0' && s <= '9') {
263			value = (10 * value) + (*s - '0');
264			s++;
265			}
266			return (isneg ? -value : value);
267			}
268			#endif
269
270	pajs	1.3	long long get_ll_match(char line, regmatch_t match){
271			char *ptr;
272			long long num;
273
274			ptr=line+match->rm_so;
275			num=atoll(ptr);
276
277			return num;
278	ats	1.8	}
279
280	ats	1.9	#ifdef ALLBSD
281	ats	1.8	kvm_t *get_kvm() {
282			static kvm_t *kvmd = NULL;
283
284			if (kvmd != NULL) {
285			return kvmd;
286			}
287
288			kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
289			return kvmd;
290	pajs	1.1	}
291	pajs	1.4	#endif
292	ats	1.9
293			#ifdef NETBSD
294			struct uvmexp *get_uvmexp() {
295			static u_long addr = 0;
296			static struct uvmexp uvm;
297			kvm_t *kvmd = get_kvm();
298
299			if (kvmd == NULL) {
300			return NULL;
301			}
302
303			if (addr == 0) {
304			struct nlist symbols[] = {
305			{ "_uvmexp" },
306			{ NULL }
307			};
308
309			if (kvm_nlist(kvmd, symbols) != 0) {
310			return NULL;
311			}
312			addr = symbols[0].n_value;
313			}
314
315			if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
316			return NULL;
317			}
318			return &uvm;
319			}
320			#endif
321
322	pajs	1.10	int statgrab_init(){
323	pajs	1.11	#ifdef ALLBSD
324			{
325			kvm_t *kvmd = get_kvm();
326	tdb	1.15	if (kvmd == NULL) return 1;
327	pajs	1.11	}
328	pajs	1.10	#endif
329			#ifdef NETBSD
330	pajs	1.11	{
331			struct uvmexp *uvm = get_uvmexp();
332			if (uvm == NULL) return 1;
333			}
334	pajs	1.14	#endif
335			#ifdef SOLARIS
336	pajs	1.17	if((build_mapping()) != 0) return 1;
337	pajs	1.10	#endif
338			return 0;
339			}