Yukiharu YABUKI の tDiary

_ pmap

    procps: /usr/bin/pmap
    procps: /usr/share/man/man1/pmap.1.gz
  

bashのプロセスで利用しているメモリーマップ。見ているだけで色々と疑問点が出てくる。 何かで似たような出力結果を見たような気がするが、ちょっと思い出せないな。ライブラリ 関係のコマンドだったような。

$ pmap -x 2965
2965:   /bin/bash
Address   Kbytes     RSS   Dirty Mode   Mapping
08048000       0     600       0 r-x--  bash
0810a000       0      20      20 rw---  bash
0810f000       0      20      20 rw---    [ anon ]
09124000       0    1980    1980 rw---    [ anon ]
b73a1000       0      12       0 r-x--  libnss_files-2.11.2.so
b73ab000       0       0       0 r----  libnss_files-2.11.2.so
b73ac000       0       0       0 rw---  libnss_files-2.11.2.so
b73ad000       0      16       0 r-x--  libnss_nis-2.11.2.so
b73b5000       0       0       0 r----  libnss_nis-2.11.2.so
b73b6000       0       0       0 rw---  libnss_nis-2.11.2.so
b73b7000       0      20       0 r-x--  libnsl-2.11.2.so
b73ca000       0       0       0 r----  libnsl-2.11.2.so
b73cb000       0       0       0 rw---  libnsl-2.11.2.so
b73cc000       0       0       0 rw---    [ anon ]
b73ce000       0      16       0 r-x--  libnss_compat-2.11.2.so
b73d4000       0       0       0 r----  libnss_compat-2.11.2.so
b73d5000       0       0       0 rw---  libnss_compat-2.11.2.so
b73d6000       0      48       0 r----  locale-archive
b74c5000       0       8       0 r----  locale-archive
b76c5000       0       4       4 rw---    [ anon ]
b76c6000       0     488       0 r-x--  libc-2.11.2.so
b7806000       0       4       4 r----  libc-2.11.2.so
b7808000       0       4       4 rw---  libc-2.11.2.so
b7809000       0      12      12 rw---    [ anon ]
b780d000       0       8       0 r-x--  libdl-2.11.2.so
b780f000       0       4       4 r----  libdl-2.11.2.so
b7810000       0       0       0 rw---  libdl-2.11.2.so
b7811000       0      68       0 r-x--  libncurses.so.5.7
b7848000       0       8       8 rw---  libncurses.so.5.7
b785f000       0       0       0 r----  bash.mo
b7861000       0      20       0 r--s-  gconv-modules.cache
b7868000       0       4       4 rw---    [ anon ]
b786a000       0       4       0 r-x--    [ anon ]
b786b000       0     100       0 r-x--  ld-2.11.2.so
b7886000       0       4       4 r----  ld-2.11.2.so
b7887000       0       4       4 rw---  ld-2.11.2.so
bfb9f000       0      20      20 rw---    [ stack ]
-------- ------- ------- ------- -------
total kB    9252       -       -       -

$ pmap -d 2965
2965:   /bin/bash
Address   Kbytes Mode  Offset           Device    Mapping
08048000     776 r-x-- 0000000000000000 0fe:00001 bash
0810a000      20 rw--- 00000000000c1000 0fe:00001 bash
0810f000      20 rw--- 0000000000000000 000:00000   [ anon ]
09124000    3364 rw--- 0000000000000000 000:00000   [ anon ]
b73a1000      40 r-x-- 0000000000000000 0fe:00001 libnss_files-2.11.2.so
b73ab000       4 r---- 0000000000009000 0fe:00001 libnss_files-2.11.2.so
b73ac000       4 rw--- 000000000000a000 0fe:00001 libnss_files-2.11.2.so
b73ad000      32 r-x-- 0000000000000000 0fe:00001 libnss_nis-2.11.2.so
b73b5000       4 r---- 0000000000008000 0fe:00001 libnss_nis-2.11.2.so
b73b6000       4 rw--- 0000000000009000 0fe:00001 libnss_nis-2.11.2.so
b73b7000      76 r-x-- 0000000000000000 0fe:00001 libnsl-2.11.2.so
b73ca000       4 r---- 0000000000012000 0fe:00001 libnsl-2.11.2.so
b73cb000       4 rw--- 0000000000013000 0fe:00001 libnsl-2.11.2.so
b73cc000       8 rw--- 0000000000000000 000:00000   [ anon ]
b73ce000      24 r-x-- 0000000000000000 0fe:00001 libnss_compat-2.11.2.so
b73d4000       4 r---- 0000000000006000 0fe:00001 libnss_compat-2.11.2.so
b73d5000       4 rw--- 0000000000007000 0fe:00001 libnss_compat-2.11.2.so
b73d6000     956 r---- 00000000048a7000 0fe:00001 locale-archive
b74c5000    2048 r---- 0000000000000000 0fe:00001 locale-archive
b76c5000       4 rw--- 0000000000000000 000:00000   [ anon ]
b76c6000    1280 r-x-- 0000000000000000 0fe:00001 libc-2.11.2.so
b7806000       8 r---- 000000000013f000 0fe:00001 libc-2.11.2.so
b7808000       4 rw--- 0000000000141000 0fe:00001 libc-2.11.2.so
b7809000      16 rw--- 0000000000000000 000:00000   [ anon ]
b780d000       8 r-x-- 0000000000000000 0fe:00001 libdl-2.11.2.so
b780f000       4 r---- 0000000000001000 0fe:00001 libdl-2.11.2.so
b7810000       4 rw--- 0000000000002000 0fe:00001 libdl-2.11.2.so
b7811000     220 r-x-- 0000000000000000 0fe:00001 libncurses.so.5.7
b7848000      12 rw--- 0000000000036000 0fe:00001 libncurses.so.5.7
b785f000       8 r---- 0000000000000000 0fe:00001 bash.mo
b7861000      28 r--s- 0000000000000000 0fe:00001 gconv-modules.cache
b7868000       8 rw--- 0000000000000000 000:00000   [ anon ]
b786a000       4 r-x-- 0000000000000000 000:00000   [ anon ]
b786b000     108 r-x-- 0000000000000000 0fe:00001 ld-2.11.2.so
b7886000       4 r---- 000000000001a000 0fe:00001 ld-2.11.2.so
b7887000       4 rw--- 000000000001b000 0fe:00001 ld-2.11.2.so
bfb9f000     132 rw--- 0000000000000000 000:00000   [ stack ]
mapped: 9252K    writeable/private: 3612K    shared: 28K

_ rpcinfo

$ dpkg -S rpcinfo
libc-bin: /usr/share/man/man8/rpcinfo.8.gz
manpages-ja: /usr/share/man/ja/man8/rpcinfo.8.gz
libc-bin: /usr/bin/rpcinfo
nmap: /usr/share/nmap/scripts/rpcinfo.nse

$ dpkg -S pmap_dump
portmap: /usr/share/man/man8/pmap_dump.8.gz
portmap: /sbin/pmap_dump

$ rpcinfo -p localhost
   プログラム バージョン プロトコル ポート
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  44486  status
    100024    1   tcp  34125  status
$ sudo pmap_dump
[sudo] password for yabuki: 
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  44486  status
    100024    1   tcp  34125  status

_ TCP/UDPのサービス名対応は

/etc/serivces をそのまま見るもよし getent や grep を使うのも良いかと。