special-case getvfsbyname(3) for fusefs(5)
fusefs file systems may have a fsname subtype (set by mount_fusefs's "-o subtype" option) that gets appended to the fsname as returned by statfs(2). The subtype is set on a per-mount basis so it isn't part of the struct vfsconf. Special-case getvfsbyname to match either the full "fusefs.foobar" or short "fusefs" fsname. Sponsored by: The FreeBSD Foundation
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parent
2019f75c32
commit
7340012337
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/projects/fuse2/; revision=348007
@ -37,9 +37,25 @@ __FBSDID("$FreeBSD$");
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#include <sys/mount.h>
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#include <sys/sysctl.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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/*
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* fusefs(5) file systems may have a "subtype" which gets appended to
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* statfs(2)'s f_fstypename field on a per-mount basis. Allow getvfsbyname to
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* match either the full "fusefs.foobar" or the more general "fusefs".
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*/
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static bool
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are_fusefs(const char *fsname, const char *vfc_name)
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{
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const char fusefs[] = "fusefs";
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const char fusefs_dot[] = "fusefs.";
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return (strncmp(fsname, fusefs_dot, strlen(fusefs_dot)) == 0 &&
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strcmp(fusefs, vfc_name) == 0);
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}
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/*
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* Given a filesystem name, determine if it is resident in the kernel,
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* and if it is resident, return its xvfsconf structure.
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@ -62,7 +78,9 @@ getvfsbyname(const char *fsname, struct xvfsconf *vfcp)
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}
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cnt = buflen / sizeof(struct xvfsconf);
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for (i = 0; i < cnt; i++) {
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if (strcmp(fsname, xvfsp[i].vfc_name) == 0) {
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if (strcmp(fsname, xvfsp[i].vfc_name) == 0 ||
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are_fusefs(fsname, xvfsp[i].vfc_name))
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{
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memcpy(vfcp, xvfsp + i, sizeof(struct xvfsconf));
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free(xvfsp);
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return (0);
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