diff options
author | rwatson <rwatson@FreeBSD.org> | 2007-12-02 23:31:45 +0000 |
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committer | rwatson <rwatson@FreeBSD.org> | 2007-12-02 23:31:45 +0000 |
commit | 88563131a07695a978d1ea8d582fcaef2bbcf495 (patch) | |
tree | 7dbb26f0de9b1cdfcb17b3932fafcf867ce71aa3 /usr.bin/procstat/procstat_files.c | |
parent | 2cfd49de5b26f76b5592e60721eee0cb4d5981e7 (diff) | |
download | FreeBSD-src-88563131a07695a978d1ea8d582fcaef2bbcf495.zip FreeBSD-src-88563131a07695a978d1ea8d582fcaef2bbcf495.tar.gz |
Add procstat(1), a process inspection utility. This provides both some
of the missing functionality from procfs(4) and new functionality for
monitoring and debugging specific processes. procstat(1) operates in
the following modes:
-b Display binary information for the process.
-c Display command line arguments for the process.
-f Display file descriptor information for the process.
-k Display the stacks of kernel threads in the process.
-s Display security credential information for the process.
-t Display thread information for the process.
-v Display virtual memory mappings for the process.
Further revision and modes are expected.
Testing, ideas, etc: cognet, sam, Skip Ford <skip at menantico dot com>
Wesley Shields <wxs at atarininja dot org>
Diffstat (limited to 'usr.bin/procstat/procstat_files.c')
-rw-r--r-- | usr.bin/procstat/procstat_files.c | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/usr.bin/procstat/procstat_files.c b/usr.bin/procstat/procstat_files.c new file mode 100644 index 0000000..e36fc01 --- /dev/null +++ b/usr.bin/procstat/procstat_files.c @@ -0,0 +1,303 @@ +/*- + * Copyright (c) 2007 Robert N. M. Watson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/sysctl.h> +#include <sys/un.h> +#include <sys/user.h> + +#include <netinet/in.h> + +#include <arpa/inet.h> + +#include <err.h> +#include <inttypes.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "procstat.h" + +static const char * +protocol_to_string(int domain, int type, int protocol) +{ + + switch (domain) { + case AF_INET: + case AF_INET6: + switch (protocol) { + case IPPROTO_TCP: + return ("TCP"); + case IPPROTO_UDP: + return ("UDP"); + case IPPROTO_ICMP: + return ("ICMP"); + case IPPROTO_RAW: + return ("RAW"); + case IPPROTO_SCTP: + return ("SCTP"); + default: + return ("??"); + } + + case AF_LOCAL: + switch (type) { + case SOCK_STREAM: + return ("UDSS"); + case SOCK_DGRAM: + return ("UDSD"); + default: + return ("??"); + } + default: + return ("??"); + } +} + +static void +addr_to_string(struct sockaddr_storage *ss, char *buffer, int buflen) +{ + char buffer2[INET6_ADDRSTRLEN]; + struct sockaddr_in6 *sin6; + struct sockaddr_in *sin; + struct sockaddr_un *sun; + + switch (ss->ss_family) { + case AF_LOCAL: + sun = (struct sockaddr_un *)ss; + if (strlen(sun->sun_path) == 0) + strlcpy(buffer, "-", buflen); + else + strlcpy(buffer, sun->sun_path, buflen); + break; + + case AF_INET: + sin = (struct sockaddr_in *)ss; + snprintf(buffer, buflen, "%s:%d", inet_ntoa(sin->sin_addr), + ntohs(sin->sin_port)); + break; + + case AF_INET6: + sin6 = (struct sockaddr_in6 *)ss; + if (inet_ntop(AF_INET6, &sin6->sin6_addr, buffer2, + sizeof(buffer2)) != NULL) + snprintf(buffer, buflen, "%s.%d", buffer2, + ntohs(sin6->sin6_port)); + else + strlcpy(buffer, "-", sizeof(buffer)); + break; + + default: + strlcpy(buffer, "", buflen); + break; + } +} + +static void +print_address(struct sockaddr_storage *ss) +{ + char addr[PATH_MAX]; + + addr_to_string(ss, addr, sizeof(addr)); + printf("%-19s", addr); +} + +void +procstat_files(pid_t pid, struct kinfo_proc *kipp) +{ + struct kinfo_file *freep, *kif; + int error, i, name[4]; + const char *str; + size_t len; + + if (!hflag) + printf("%5s %3s %1s %1s %-8s %3s %7s %-4s %-35s\n", "PID", + "FD", "T", "V", "FLAGS", "REF", "OFFSET", "PROT", + "NAME"); + + name[0] = CTL_KERN; + name[1] = KERN_PROC; + name[2] = KERN_PROC_FILEDESC; + name[3] = pid; + + error = sysctl(name, 4, NULL, &len, NULL, 0); + if (error < 0 && errno != ESRCH && errno != EPERM) { + warn("sysctl: kern.proc.filedesc: %d", pid); + return; + } + if (error < 0) + return; + + freep = kif = malloc(len); + if (kif == NULL) + err(-1, "malloc"); + + if (sysctl(name, 4, kif, &len, NULL, 0) < 0) { + warn("sysctl: kern.proc.filedesc %d", pid); + free(freep); + return; + } + + for (i = 0; i < len / sizeof(*kif); i++, kif++) { + if (kif->kf_structsize != sizeof(*kif)) + errx(-1, "kinfo_file mismatch"); + printf("%5d ", pid); + printf("%3d ", kif->kf_fd); + switch (kif->kf_type) { + case KF_TYPE_VNODE: + str = "v"; + break; + + case KF_TYPE_SOCKET: + str = "s"; + break; + + case KF_TYPE_PIPE: + str = "p"; + break; + + case KF_TYPE_FIFO: + str = "f"; + break; + + case KF_TYPE_KQUEUE: + str = "k"; + break; + + case KF_TYPE_CRYPTO: + str = "c"; + break; + + case KF_TYPE_MQUEUE: + str = "m"; + break; + + case KF_TYPE_NONE: + case KF_TYPE_UNKNOWN: + default: + str = "?"; + break; + } + printf("%1s ", str); + str = "-"; + if (kif->kf_type == KF_TYPE_VNODE) { + switch (kif->kf_vnode_type) { + case KF_VTYPE_VREG: + str = "r"; + break; + + case KF_VTYPE_VDIR: + str = "d"; + break; + + case KF_VTYPE_VBLK: + str = "b"; + break; + + case KF_VTYPE_VCHR: + str = "c"; + break; + + case KF_VTYPE_VLNK: + str = "l"; + break; + + case KF_VTYPE_VSOCK: + str = "s"; + break; + + case KF_VTYPE_VFIFO: + str = "f"; + break; + + case KF_VTYPE_VBAD: + str = "x"; + break; + + case KF_VTYPE_VNON: + case KF_VTYPE_UNKNOWN: + default: + str = "?"; + break; + } + } + printf("%1s ", str); + printf("%s", kif->kf_flags & KF_FLAG_READ ? "r" : "-"); + printf("%s", kif->kf_flags & KF_FLAG_WRITE ? "w" : "-"); + printf("%s", kif->kf_flags & KF_FLAG_APPEND ? "a" : "-"); + printf("%s", kif->kf_flags & KF_FLAG_ASYNC ? "s" : "-"); + printf("%s", kif->kf_flags & KF_FLAG_FSYNC ? "f" : "-"); + printf("%s", kif->kf_flags & KF_FLAG_NONBLOCK ? "n" : "-"); + printf("%s", kif->kf_flags & KF_FLAG_DIRECT ? "d" : "-"); + printf("%s ", kif->kf_flags & KF_FLAG_HASLOCK ? "l" : "-"); + printf("%3d ", kif->kf_ref_count); + printf("%7jd ", (intmax_t)kif->kf_offset); + + switch (kif->kf_type) { + case KF_TYPE_VNODE: + case KF_TYPE_FIFO: + printf("%-4s ", "-"); + printf("%-35s", kif->kf_path); + break; + + case KF_TYPE_SOCKET: + printf("%-4s ", + protocol_to_string(kif->kf_sock_domain, + kif->kf_sock_type, kif->kf_sock_protocol)); + /* + * While generally we like to print two addresses, + * local and peer, for sockets, it turns out to be + * more useful to print the first non-nul address for + * local sockets, as typically they aren't bound and + * connected, and the path strings can get long. + */ + if (kif->kf_sock_domain == AF_LOCAL) { + struct sockaddr_un *sun = + (struct sockaddr_un *)&kif->kf_sa_local; + + if (sun->sun_path[0] != 0) + print_address(&kif->kf_sa_local); + else + print_address(&kif->kf_sa_peer); + } else { + print_address(&kif->kf_sa_local); + printf(" "); + print_address(&kif->kf_sa_peer); + } + break; + + default: + printf("%-4s ", "-"); + printf("%-35s", "-"); + } + + printf("\n"); + } + free(freep); +} |