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Top Forums Programming memory sharing - not shared memory - Post 302116116 by elzalem on Wednesday 2nd of May 2007 01:28:57 AM
Old 05-02-2007
Quote:
Originally Posted by porter
...have another server process that contains the list and all other processes use some form of IPC or RPC to access...
in the end that's what i did! But i was trying to see if there is something i don't know about in unix that can allow me to:

p1 and p2 are 2 processes,

in p1:
int *var=malloc(sizeof(int));
send var to p2 (the address not the value)

in p2:
*var = 4; // normaly that'll give an error

I need to allow p2 to gain access to all the memory space of p1. i can simply put em in a shared memory, but i was trying to find a substitute!
 

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dbadm_sudo_selinux(8)					     SELinux Policy dbadm_sudo					     dbadm_sudo_selinux(8)

NAME
dbadm_sudo_selinux - Security Enhanced Linux Policy for the dbadm_sudo processes DESCRIPTION
Security-Enhanced Linux secures the dbadm_sudo processes via flexible mandatory access control. The dbadm_sudo processes execute with the dbadm_sudo_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep dbadm_sudo_t ENTRYPOINTS
The dbadm_sudo_t SELinux type can be entered via the sudo_exec_t file type. The default entrypoint paths for the dbadm_sudo_t domain are the following: /usr/bin/sudo(edit)? PROCESS TYPES
SELinux defines process types (domains) for each process running on the system You can see the context of a process using the -Z option to ps Policy governs the access confined processes have to files. SELinux dbadm_sudo policy is very flexible allowing users to setup their dbadm_sudo processes in as secure a method as possible. The following process types are defined for dbadm_sudo: dbadm_sudo_t Note: semanage permissive -a dbadm_sudo_t can be used to make the process type dbadm_sudo_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. BOOLEANS
SELinux policy is customizable based on least access required. dbadm_sudo policy is extremely flexible and has several booleans that allow you to manipulate the policy and run dbadm_sudo with the tightest access possible. If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlo- gin_nsswitch_use_ldap boolean. Disabled by default. setsebool -P authlogin_nsswitch_use_ldap 1 If you want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by default. setsebool -P deny_ptrace 1 If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default. setsebool -P domain_fd_use 1 If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by default. setsebool -P domain_kernel_load_modules 1 If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default. setsebool -P fips_mode 1 If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default. setsebool -P global_ssp 1 If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default. setsebool -P kerberos_enabled 1 If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default. setsebool -P nis_enabled 1 If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled by default. setsebool -P nscd_use_shm 1 If you want to support ecryptfs home directories, you must turn on the use_ecryptfs_home_dirs boolean. Disabled by default. setsebool -P use_ecryptfs_home_dirs 1 If you want to support fusefs home directories, you must turn on the use_fusefs_home_dirs boolean. Disabled by default. setsebool -P use_fusefs_home_dirs 1 If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default. setsebool -P use_nfs_home_dirs 1 If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default. setsebool -P use_samba_home_dirs 1 NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for the dbadm_sudo_t, you must turn on the authlogin_nsswitch_use_ldap boolean. setsebool -P authlogin_nsswitch_use_ldap 1 If you want to allow confined applications to run with kerberos for the dbadm_sudo_t, you must turn on the kerberos_enabled boolean. setsebool -P kerberos_enabled 1 MANAGED FILES
The SELinux process type dbadm_sudo_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions. cifs_t dbadm_sudo_tmp_t ecryptfs_t /home/[^/]*/.Private(/.*)? /home/[^/]*/.ecryptfs(/.*)? faillog_t /var/log/btmp.* /var/log/faillog.* /var/log/tallylog.* /var/run/faillock(/.*)? fusefs_t /var/run/[^/]*/gvfs initrc_var_run_t /var/run/utmp /var/run/random-seed /var/run/runlevel.dir /var/run/setmixer_flag krb5_host_rcache_t /var/cache/krb5rcache(/.*)? /var/tmp/nfs_0 /var/tmp/DNS_25 /var/tmp/host_0 /var/tmp/imap_0 /var/tmp/HTTP_23 /var/tmp/HTTP_48 /var/tmp/ldap_55 /var/tmp/ldap_487 /var/tmp/ldapmap1_0 nfs_t pam_var_run_t /var/(db|lib|adm)/sudo(/.*)? /var/run/sudo(/.*)? /var/run/sepermit(/.*)? /var/run/pam_mount(/.*)? security_t /selinux sudo_db_t /var/db/sudo(/.*)? user_home_t /home/[^/]*/.+ user_tmp_t /var/run/user(/.*)? /tmp/hsperfdata_root /var/tmp/hsperfdata_root /tmp/gconfd-.* COMMANDS
semanage fcontext can also be used to manipulate default file context mappings. semanage permissive can also be used to manipulate whether or not a process type is permissive. semanage module can also be used to enable/disable/install/remove policy modules. semanage boolean can also be used to manipulate the booleans system-config-selinux is a GUI tool available to customize SELinux policy settings. AUTHOR
This manual page was auto-generated using sepolicy manpage . SEE ALSO
selinux(8), dbadm_sudo(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8) dbadm_sudo 14-06-10 dbadm_sudo_selinux(8)
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