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[procfs] Split procfs_attr into multiple functions

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Reviewed by:	des, kib
Discussed with:	mmacy
Differential Revision:	https://reviews.freebsd.org/D15150
This commit is contained in:
Eitan Adler 2018-04-24 14:49:09 +00:00
parent a5bd21d0fe
commit e07db02261
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=332936
3 changed files with 36 additions and 27 deletions
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2
sys/compat/linprocfs/linprocfs.c
View File

@ -1591,7 +1591,7 @@ linprocfs_init(PFS_INIT_ARGS)
pfs_create_file(dir, "maps", &linprocfs_doprocmaps,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "mem", &procfs_doprocmem,
&procfs_attr, &procfs_candebug, NULL, PFS_RDWR|PFS_RAW);
procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
pfs_create_file(dir, "mounts", &linprocfs_domtab,
NULL, NULL, NULL, PFS_RD);
pfs_create_link(dir, "root", &linprocfs_doprocroot,

57
sys/fs/procfs/procfs.c
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@ -98,24 +98,10 @@ procfs_docurproc(PFS_FILL_ARGS)
return (0);
}
/*
* Adjust mode for some nodes that need it
*/
int
procfs_attr(PFS_ATTR_ARGS)
{
/* XXX inefficient, split into separate functions */
if (strcmp(pn->pn_name, "note") == 0 ||
strcmp(pn->pn_name, "notepg") == 0)
vap->va_mode = 0200;
else if (strcmp(pn->pn_name, "mem") == 0 ||
strcmp(pn->pn_name, "regs") == 0 ||
strcmp(pn->pn_name, "dbregs") == 0 ||
strcmp(pn->pn_name, "fpregs") == 0 ||
strcmp(pn->pn_name, "osrel") == 0)
vap->va_mode = 0600;
static int
procfs_attr(PFS_ATTR_ARGS, int mode) {
vap->va_mode = mode;
if (p != NULL) {
PROC_LOCK_ASSERT(p, MA_OWNED);
@ -126,6 +112,27 @@ procfs_attr(PFS_ATTR_ARGS)
return (0);
}
int
procfs_attr_all_rx(PFS_ATTR_ARGS)
{
return (procfs_attr(td, p, pn, vap, 0555));
}
int
procfs_attr_rw(PFS_ATTR_ARGS)
{
return (procfs_attr(td, p, pn, vap, 0600));
}
int
procfs_attr_w(PFS_ATTR_ARGS)
{
return (procfs_attr(td, p, pn, vap, 0200));
}
/*
* Visibility: some files only exist for non-system processes
* Non-static because linprocfs uses it.
@ -164,33 +171,33 @@ procfs_init(PFS_INIT_ARGS)
NULL, NULL, NULL, 0);
dir = pfs_create_dir(root, "pid",
procfs_attr, NULL, NULL, PFS_PROCDEP);
procfs_attr_all_rx, NULL, NULL, PFS_PROCDEP);
pfs_create_file(dir, "cmdline", procfs_doproccmdline,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "dbregs", procfs_doprocdbregs,
procfs_attr, procfs_candebug, NULL, PFS_RDWR|PFS_RAW);
procfs_attr_rw, procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
pfs_create_file(dir, "etype", procfs_doproctype,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "fpregs", procfs_doprocfpregs,
procfs_attr, procfs_candebug, NULL, PFS_RDWR|PFS_RAW);
procfs_attr_rw, procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
pfs_create_file(dir, "map", procfs_doprocmap,
NULL, procfs_notsystem, NULL, PFS_RD);
node = pfs_create_file(dir, "mem", procfs_doprocmem,
procfs_attr, procfs_candebug, NULL, PFS_RDWR|PFS_RAW);
procfs_attr_rw, procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
node->pn_ioctl = procfs_ioctl;
node->pn_close = procfs_close;
pfs_create_file(dir, "note", procfs_doprocnote,
procfs_attr, procfs_candebug, NULL, PFS_WR);
procfs_attr_w, procfs_candebug, NULL, PFS_WR);
pfs_create_file(dir, "notepg", procfs_doprocnote,
procfs_attr, procfs_candebug, NULL, PFS_WR);
procfs_attr_w, procfs_candebug, NULL, PFS_WR);
pfs_create_file(dir, "regs", procfs_doprocregs,
procfs_attr, procfs_candebug, NULL, PFS_RDWR|PFS_RAW);
procfs_attr_rw, procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
pfs_create_file(dir, "rlimit", procfs_doprocrlimit,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "status", procfs_doprocstatus,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "osrel", procfs_doosrel,
procfs_attr, procfs_candebug, NULL, PFS_RDWR);
procfs_attr_rw, procfs_candebug, NULL, PFS_RDWR);
pfs_create_link(dir, "file", procfs_doprocfile,
NULL, procfs_notsystem, NULL, 0);

4
sys/fs/procfs/procfs.h
View File

@ -57,7 +57,9 @@ int procfs_ioctl(PFS_IOCTL_ARGS);
int procfs_close(PFS_CLOSE_ARGS);
/* Attributes */
int procfs_attr(PFS_ATTR_ARGS);
int procfs_attr_w(PFS_ATTR_ARGS);
int procfs_attr_rw(PFS_ATTR_ARGS);
int procfs_attr_all_rx(PFS_ATTR_ARGS);
/* Visibility */
int procfs_notsystem(PFS_VIS_ARGS);